User talk:JohnSRoberts99/Archive 1

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This is your Talk page where you can receive messages from other Wikipedians and discuss things with them. At the end of your messages you must put your signature by signing with four ~~~~ or by pressing the button in the editor bar as shown here in the picture. By the way, you don't need to sign edits that you make in the articles themselves as those messages will be deleted. My name is Buster7 and I am a Wiki Guide. If you have any questions or face any initial hurdles, feel free to contact me on my talk page and I will do what I can to assist. Good Luck editing! Buster Seven Talk 14:51, 3 April 2011 (UTC)

THT

To address the question you pose in a recent edit summary: Wikipedia aims preferrentially cite encyclopedias, books, and reviews, not patents and not journal articles. The guideline is WP:SECONDARY. It is impossible to cover primary literature such as patents (which are usually quite useless sources of information except to specialists who can parse the legal jargon. People tend to cite journal articles because they do not have access to or are not aware of secondary sources.--Smokefoot (talk) 12:09, 20 May 2012 (UTC)

Dont go

I saw that you blanked your page. Frustrated I suppose, understandably! ChemBoxes turned into some some sort of strange obsessive-compulsive venue that I learned to avoid a long time ago. There is one administrator who periodically monitors that ward, upon request: user:Beetstra.

Just stick to chemistry - you're really good at it. And we hardly have anyone at your skill level with respect to writing, knowledge, and a sense of humor. The nut-cases do not know enough chemistry to bother people like you and me very often. So I hope you reconsider. We have a lot of stuff to do. So have a beer, and reconsider --Smokefoot (talk) 02:28, 12 July 2012 (UTC)

Thanks. I probably will but the nomenclature issue needs to be dealt with sooner or later. I will let someone else deal with it. JSR (talk) 11:25, 12 July 2012 (UTC)

Fluoride

Re: [1]. My copy of Greenwood has a section "Fluorides" (Ch. 17, p. 820) that covers both organic and inorganic ones. Materialscientist (talk) 06:31, 14 July 2012 (UTC)

Look at page 791 and 821. I've been an organofluorine chemist or an organic fluorine chemist or a fluorocarbon chemist, but I've never been an organic fluoride chemist. (I've been an inorganic fluoride chemist though).JSR (talk) 06:48, 14 July 2012 (UTC)
But that sentence used "organofluorine". Also, how about polyvinylidene fluoride, carbonyl fluoride, polyvinyl fluoride, vinyl fluoride, etc? Materialscientist (talk) 07:15, 14 July 2012 (UTC)
COF2 is inorganic. The fluoride hydrolyzes off readily, whereas with most organofluorine compounds, it takes a lot more work to get that to happen (pyridine and sodium metal work really well to remove fluorides from organofluorine compounds). The others are exceptions. IUPAC does not use fluoride for naming organics.JSR (talk) 07:29, 14 July 2012 (UTC)
JSR: the fluorine business has a lot of history here, and we have never had an expert with much first hand experience, especially in the area of inorganic fluorine compounds. So I encourage you make improvements as you see fit.
We had a zealous nonchemist here at one time (user:Shootbamboo) who pushed all sorts of nomenclature that would be strange to chemists. His cause du jour was the widespread occurrence of perfluorinated surfactants such as PFOS, and he was initially convinced that most chemically fluent editors, me especially, were on the dark side, environmentally. His tracks are still evident here as you can see if you look up any class of fluorocarbon. Those articles (and titles) should probably be reworked now that the heat is off. He loved the noun(!) organofluorine, which I have never heard from a chemist.
One theme to be avoided (or not, depending on your disposition) is the definition game of organic vs inorganic - and many related definitions. Semantic themes attract all sorts of editors who dont know enough chemistry to add real content but love to argue.--Smokefoot (talk) 19:40, 14 July 2012 (UTC)
The organic vs inorganic game is always based on whether the compound acts like it's organic or an inorganic compound. If I can hydrolyze the fluoride with little difficulty, then it's inorganic.JSR (talk) 19:46, 14 July 2012 (UTC)
Well good luck with that one. http://orgsyn.org/orgsyn/default.asp?formgroup=basenpe_form_group&dataaction=db&dbname=orgsyn. --Smokefoot (talk) 20:48, 14 July 2012 (UTC)

The Medicine Article

Putting the words Pharmacia and Pharmakea in the medicine article only serves our cause by pushing more relevant information to the top of the search engine when people do a search for Pharmacia or Pharmakea pushing biblical references lower in rank. 2602:306:C518:62C0:1E75:8FF:FEBB:2125 (talk) 16:17, 17 July 2012 (UTC)

What cause?JSR (talk) 16:24, 17 July 2012 (UTC)

You were concerned as I was of the negative connotations toward medicine on the internet when doing a search for the Greek word for medicine Pharmakea. 2602:306:C518:62C0:1E75:8FF:FEBB:2125 (talk) 16:30, 17 July 2012 (UTC)

I am beginning to see that salvation comes through YESHUWA not pharmaceuticals. Sorry I am not going to join this conspiracy of yours. Did you know that pharmaceuticals are derived from petrochemicals? Did you know that crude oil is the ancient poop of ancient animals? Do you have a church you can recommend I attend? Maybe you would know since since you are so antiChristian. Please don't take that wrong. You were against the word because you were afraid people would see the Biblical viewpoint of medicine. I am a Christian but I never knew the Greek word for pharmaceutical was in the Bible. It says in Revelation that those practicing pharmakea will be cast in the lake of fire and tormented forever and that a figure called the Whore of Babylon is deceiving the nations with pharmakea. I appreciate you pointing me in the right direction albeit not intentional. If not for you I would have never knew these things. Also crude oil is what lubricates the planet. Bringing that stuff up is causing big earthquakes. 2602:306:C518:62C0:1E75:8FF:FEBB:2125 (talk) 18:33, 17 July 2012 (UTC)

You are welcome. I guess I have a better understanding of your cause now.JSR (talk) 18:38, 17 July 2012 (UTC)

Dispute resolution

If you are interested, now is a suitable time to contribute to this Wikipedia:ANI#Chembox_edits_by_User:Plasmic_Physics. --Smokefoot (talk) 22:39, 18 July 2012 (UTC)

Thanks. I noted that it was being resolved, I threw in my 2 cents about the changes to the odor in ChemBoxes, which I don't think was noted by anyone and decided not to pile on. I think his heart is in the right place, but he doesn't have enough background to be anything but dangerous.JSR (talk) 22:42, 18 July 2012 (UTC)

Atomic mass

Hi. I saw that you reverted my edit in mass number. Here is my rationale for making that edit:

  • It is the first time in that article that the mass number is said not to be confused with another concept, therefore the word "also" is redundant.
  • The paragraph explains what relative atomic mass (a.k.a atomic weight) is, and why it shouldn't be confused with mass number. The section heading, however, currently refers to atomic mass which is a different concept, and is also not to be confused with relative atomic mass. It doesn't matter which one of these two concepts are compared to the mass number, but the section heading should be consistent with the section contents.

--Farzaneh (talk) 22:33, 22 July 2012 (UTC)

Fishy

Tools exist for replacing one word with another. If the mood strikes, you might consider replacing the ridiculous term "ichthyal" with fishy across many articles. It has also occurred to both of us probably that we need some sort of systematic way of correcting the damage done to many pages by Plasmic person. The obvious problems are the names, but there may be subtler defects that require correction. For example, the "related compounds" lists are often too long or point to barely relevant compounds. Ideally one could setting up a mini database on his edits to monitor the progress on undoing the problems. To his credit, he might have been consistently unwise and fetishist, but he may have done good things as well with regards to other aspects of the ChemBox that I dont check.--Smokefoot (talk) 14:08, 31 August 2012 (UTC)

I can usually find the ones where he made changes by looking at names and not seeing IUPAC names (or any names for that matter) or finding citation needed tags. I've been changing things on a piecemeal basis when I run into them. As far as tools that run across many pages, the only thing that worries me about that is can we control them enough to make sure they don't change "icthyal" to fishy someplace where it might actually be required? (As far as odor goes, he was on a kick for a while to give essential oil odors to the higher alkanes, as they were on the analysis list of one of the essential oil companies. I think I got most of those.)
Also, he changed all of the densities to "mg/mL", which may be OK, or we may want to change. I've never seen any text quoting densities in those units, but at least you get the same numbers as you would in kg/m3. Have you looked at the number of edits he has made? There are 100's of them, where he puts in one compound at a time across 40-50 different compound groups. I'm not sure that databasing it will be that easy. I do think we can start doing some editing on related compound listing when we get a chance. I've just decided to do a couple a day and see what happens. Cheers.JSR (talk) 14:23, 31 August 2012 (UTC)
Oops, misspoke. I searched icthyal not ichthyal. There are a bunch of the latter.JSR (talk) 15:35, 31 August 2012 (UTC)

Further on spelling

I wondered about Parliment vs Parliament for the man's name but I messed up.

Sorry

EoGuy (talk) 14:59, 1 September 2012 (UTC)

Food sources of phosphorus

Hello! You believe that information about phosphorus in chocolate is unnecessary in the article Phosphorus. But other articles about nutrients often contain many, sometimes dozens, examples of food sources (look, for example, at Calcium#Nutrition). It is naturally that one reading an article about a nutrient may want to find out which kinds of food contain it. It seems to me that it would be quite interesting after the information about phosphorus in calcium-rich foods to read about an example (chocolate) of food being not calcium-rich, but phosphorus-rich. Now there are only three certain examples there. Maybe, you would agree that 4 examples is not too many yet? --D.M. from Ukraine (talk) 19:23, 1 September 2012 (UTC)

If you want to add information about phosphorus rich foods that is one thing. If you want to add information about only one phosphorus rich food, that is another. Add a section about phosphorus rich foods and I am sure it will be well received.JSR (talk) 19:26, 1 September 2012 (UTC)
It is unnecessary to add a section because the section "Food sources" should be just a section about phosphorus rich foods (maybe, someone will add there also information about foods with little phosphorus, but the main information of the section should be about foods with much phosphorus). Now this is a stub-section. I cannot expand it essentially because I don't know much information on this topic. But I can add just one food expanding this section only a little. Do you consider it is unnecessary to expand stubs a little bit? As for me, such kind of expansion contributes essentially to the development of Wikipedia. --D.M. from Ukraine (talk) 14:38, 2 September 2012 (UTC)
If you really don't know about the topic, you are perhaps not in a position to assess the value of the information you wish to put in place. Do a little research and share it with us. Cheers.JSR (talk) 14:57, 2 September 2012 (UTC)
Probably, in this case it is not difficult to conclude that every additional example of a phosphorus rich food is of sufficient value to be add to the section. One doesn't need any deep knowledge about phosphorus to make this conclusion. Every additional example is useful at least for those who simply look for examples. If you nevertheless consider that the value of the example "chocolate" is insufficient then, please, explain me why. --D.M. from Ukraine (talk) 13:50, 4 September 2012 (UTC)

Ethanedithiol prep

I saw your note on the industrial prep of this dithiol from NaSH and ethylenedichloride. I expected that this reaction led to excessive thioether formation but maybe there are tricks that avoid this problem. In fact, I teach students that thiols usually cannot be made well from NaSH for this reason. Comments? --Smokefoot (talk) 13:53, 3 September 2012 (UTC)

It is made that way commercially. In general, you use excess NaSH and H2S. Yields are 90+%. Just takes some tweaking. If you don't use excess NaSH/H2S, you end up with a mess. CPChem is currently producing this material with this route.JSR (talk) 13:56, 3 September 2012 (UTC)
Thanks. I always figured that there was a way to do this with tweaking the stoichiometry, so nice to hear. On a related note, do you know of any commercial applications aside from selling it to researchers? Ditto for the two propanedithiols. You might review the prep section in Thiol, since I wrote that relying on academic perspective leavened by Ullmann's.--Smokefoot (talk) 14:33, 3 September 2012 (UTC)

Harvade, a cotton defoliant, is the biggest application for the ethanedithiol. Never could get anyone to bite on the propanedithiols, but not for lack of trying. I have not been told about any other applications in the last 10-15 years, so I assume this is true.JSR (talk) 14:38, 3 September 2012 (UTC)

Don't mean to intrude but this is an interesting discussion. John, do you have a ref for the commercial prep? --Rifleman 82 (talk) 14:57, 3 September 2012 (UTC)

Actually, the easiest one to find is the 1997 Kirk-Othmer article on thiols, but I get into trouble quoting that one. I may need to dig into the patent literature to find that one.JSR (talk) 15:14, 3 September 2012 (UTC)

Well I cite my own work occasionally for reviews and a text. --Smokefoot (talk) 19:05, 3 September 2012 (UTC)

Vulcanization

Maybe you know something about the vulcanization of rubber using sulfur? It is almost impossible to find a chemical equation for what happens in that process. Our current image ([[File:Vulcanization of POLYIsoprene V.2.png]]) was contributed by an experienced organic chemist, but he admitted that he was unsure. I was going to upgrade (remove C2S4 ring) using this reaction that begins with activation of an allylic CH and then addition of SH across another double bond:

2RCH=CH-CH2- + Sx → RCH=CH-CH-Sx-C(R)H-CH2-CH2-

But maybe you have better sources. I have been itching to get a decent image.--Smokefoot (talk) 19:05, 3 September 2012 (UTC)

The problem with vulcanization is that it is mostly sulfur + double bonds + heat and you end up getting sulfides, disulfides, and polysulfides. I don't think there is a single real reaction going on, which makes drawing structures pretty speculative. It's probably a fairly reasonable representation, but that's all it can really be. Check out http://books.google.com/books?id=J_AkNu-Y1wQC&pg=PA216&lpg=PA216&dq=sulfurized+olefins&source=bl&ots=j0CvbRIZfr&sig=Mvpa5HJRNnkgjz5FNieGeUwtpX0&hl=en#v=onepage&q=sulfurized%20olefins&f=false. That is similar in concept.JSR (talk) 19:23, 3 September 2012 (UTC)

Vinyl amine?

You might recheck, vinyl amine is unknown. Would be like vinyl alcohol. Also my guess is that cysteamine has hydrogen-bonds from SH to N but is probably not ionized. Someone must have done the structure, but it is not in Cambridge Database. --Smokefoot (talk) 17:11, 18 September 2012 (UTC)

True enough. I am remembering having made this monstrosity directly, but now I am going to have to chase down the route. I removed it.JSR (talk) 17:16, 18 September 2012 (UTC)

Monty Hall problem RFC

Hi! Over at Talk:Monty Hall problem#Conditional or Simple solutions for the Monty Hall problem? I assigned Abstain to your comments. If this is incorrect, please indicate "Proposal #1", "Proposal #2", or "Neither". Thanks! --Guy Macon (talk) 20:43, 20 September 2012 (UTC)

Concerning the pyrolysis category =

Hi John ! I am for sure against spam in WP, and altought I am not the creator of this company's page, it seems that it has been for a while in WP and has not been challenged so far. I believe they have brought some innovation to the field, if you believe they don't deserve to be in WP go ahead and propose theme for deletion I have no problem for it.--Khalid hassani (talk) 15:49, 22 September 2012 (UTC)

Interest in sulfur compounds: Dietary Sulfur

Hi. Do you know of any sources/databases detailing the sulfur content of foods? — Preceding unsigned comment added by 212.183.140.19 (talk) 12:31, 23 September 2012 (UTC)

The FDA is the most likely place. They have databases on essential elements, but I am not sure if sulfur is included or not.JSR (talk) 12:34, 23 September 2012 (UTC)

Sulfasalazine removed content

Sulfasalazine DOES NOT inhibits dihydrofolate reductase, and DOES NOT cause folate deficiency and megaloblastic anemia, this is a common mistake!

Ahmad Al-Tamimi, M.B.B.S. — Preceding unsigned comment added by 87.236.233.3 (talk) 01:19, 26 September 2012 (UTC)

In general, if you are removing content from an article, it is a good idea to let people know why you are doing it. The edit summary is a good place to do this. Else, people will revert your changes.JSR (talk) 01:29, 26 September 2012 (UTC)

How to Contact

Do I understand rightly? You post on my talk page and I post on your talk page? A rather disconnected conversation...

SODIUM NITRITE The whole paragraph has no references. "uses in photography" (vague), "electrolyte", "diluted", etc. including the last sentence about "closed loop cooling systems." Should all of that be undone?

If I say "as an anti-corrosion additive to industrial greases" then a user would have to search for "industrial grease additive" and may have a difficult time finding info on Sodium Nitrite. If they search the DuPont grease they will have an direct connection to something that I know to be a fact. It is not SPAM and I don't have any connection to DuPont, but I do like examples that allow an encyclopedia to be helpful in my search for knowledge.

Perhaps you can tell me how to reference a source which is a webinar produced by DuPont, not guaranteed to remain posted on the web forever or even more than a few months? Should I post a ref to a DuPont data sheet? Babahu (talk) 02:26, 28 September 2012 (UTC)

Actually, if you are set up correctly, I can post here, and you will see a note indicating a change on this page. Or, I can put an announcement, to be polite, that there is a message here, on my talk page. The difficulty with a lot of web content is that it ends up being [WP:SPAM]. Webinars are not the best sources, as almost anyone can say anything. For sources read WP:VERIFY and WP:PRIMARY.
If you want to reference the use of nitrites, find a secondary source that says it. An encyclopedia, such as Ullmans or Kirk-Othmer, a review article, a text book or book will work.JSR (talk) 09:37, 28 September 2012 (UTC)

Please address this issue: The whole paragraph in question has no references. "uses in photography" (vague), "electrolyte", "diluted", etc. including the last sentence about "closed loop cooling systems." Should all of that be undone? — Preceding unsigned comment added by Babahu (talkcontribs) 22:05, 28 September 2012 (UTC)

You would have to go back to the original and determine where they came from. That sounds like a task for you to undertake. To remove it you are going to have a reason. You can put in the [citation needed] template in to challenge those, if you so choose. Also, you need to use 4 '~'s in a row so that SineBot doesn't have to sign all your posts.JSR (talk) 23:11, 28 September 2012 (UTC)

Thanks, I appreciate all your help. Thanks for fixing my refs. The DuPont ref that talked about the sodium nitrate directly was a pdf and I did not know how to ref to that.

The lack of refs I mention has to do with the fact that you removed my addition for lack of a reference and yet I saw no references for the preceding items in that paragraph. I trust the info and I myself don't need refs on those things, but I do want to know when refs are really needed and when not. "Verifiable" can mean you can verify it, but not necessarily that you have to do so in the entry itself or give refs. So I am just learning. Appreciate any opinions on the above. — Preceding unsigned comment added by Babahu (talkcontribs) 23:46, 29 September 2012 (UTC)

I understood your comments, but the problem is that there may have been a reference and it was lost in the shuffle or the original article was out of Ullman's. Typically, I won't remove something or question it, unless it seems really weird or completely off the wall. You can always put in the [citation needed] template and request a reference. Also, you need to sign your posts. 4~'s is the usual method.JSR (talk) 23:50, 29 September 2012 (UTC)

Just a thank you

I wanted to thank you for your assistance the other day over on wikiproject chemicals! Gzuufy (talk) 04:04, 30 September 2012 (UTC)

Dolomite "In Popular Culture": "not particularly useful" (to some) = merits removal (for all)?

By that logic, none of the zillions of "In Popular Culture" sections on Wikipedia pages are "particularly useful", so should they all be deleted too? The "In Popular Culture" dimension of Wikipedia must be particularly useful to at least those with an appreciative curiosity (like me) and those specifically researching references to [X] in popular culture, so therefore you believe Wikipedia should explicitly avoid serving such people? I won't start an edit-war over it, I just wish you would reconsider proactive opposition to "In Popular Culture". Acting against any dimension of Wikipedia seems to me is acting against Wikipedia itself. Cheers. — Preceding unsigned comment added by 108.18.224.118 (talk) 16:06, 1 October 2012 (UTC)

Your request for rollback

 

Hi JohnSRoberts99. After reviewing your request for rollback, I have enabled rollback on your account. Keep in mind these things when going to use rollback:

  • Getting rollback is no more momentous than installing Twinkle.
  • Rollback should be used to revert clear cases of vandalism only, and not good faith edits.
  • Rollback should never be used to edit war.
  • If abused, rollback rights can be revoked.
  • Use common sense.

If you no longer want rollback, contact me and I'll remove it. Also, for some more information on how to use rollback, see Wikipedia:New admin school/Rollback (even though you're not an admin). I'm sure you'll do great with rollback, but feel free to leave me a message on my talk page if you run into troubles or have any questions about appropriate/inappropriate use of rollback. Thank you for helping to reduce vandalism. Happy editing! Yunshui  14:04, 4 October 2012 (UTC)

Glycine

Ext Ref is not a spam but refers to the name of tone of the companies in parag thre: "In the USA (by GEO Specialty Chemicals, Inc.) and in Japan (by Shoadenko), glycine is produced via the Strecker amino acid synthesis.[8][9]" Savolya (talk) 15:42, 4 October 2012 (UTC)

Naming it in the article and adding an external reference are two different things, but after looking at it, I would say that we definitely have spam. Reference 8 indicates that GEO and Shoadenko manufacture by the Strecker process. The GEO web site does not say that, therefore, it is not a reference. The addition of the web site to the external links is definitely spam. I will put a note on the talk page of glycine and let others put in their two cents.JSR (talk) 15:57, 4 October 2012 (UTC)

Please comment on Talk:Comparison of Intel graphics processing units

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Fuel gas

I've started a discussion at Talk:Fuel gas about changing Fuel gas from a disambiguation page back to an article. As you made the change earlier, your input would be appreciated. Thank you. SchreiberBike (talk) 22:59, 27 October 2012 (UTC)

MgOH

Dear John, About MgOH and CaOH: (I have PhD in Organic Chemistry as well.) I noticed there are many different values for solubility of Mg(OH)2, and if you use the numbers in wikipedia, i.e. Ksp and solubility in g/L, they do not come out right. I disagree with your statement, that Ca(OH)2 and Mg(OH)2 do not differ very much in solubility. Actually, they do. Quite much for all practical purposes. Ca(OH)2 is about 0.1% or so, and will maintain pH of 12.5, while Mg(OH)2 is 3-4 orderes of magnitude less, and will keep pH almost intact. This is very important if you need to conduct a pH sensitive reaction.

Regards,

Nick, 20121025 — Preceding unsigned comment added by 50.193.173.17 (talk) 17:51, 25 October 2012 (UTC)

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Please comment on Talk:DirectWrite

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Please comment on Talk:Direct2D

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Please comment on Talk:Cultural impact of extraterrestrial contact

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Please comment on Talk:Effective method

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Please comment on Talk:Circumcision

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Please comment on Talk:Deepwater Horizon oil spill

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Please comment on Talk:Renewable energy

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Please comment on Wikipedia talk:WikiProject Numbers

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Please comment on Talk:History of video game consoles (eighth generation)

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Please comment on Talk:Cloud computing

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Please comment on Talk:List of people who have been called a polymath

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Please comment on Talk:Cannabis (drug)

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Please comment on Talk:Organic milk

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Please comment on Talk:Neuro-linguistic programming

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Please comment on Talk:Northern Ireland

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Please comment on Talk:Tornado preparedness

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Please comment on Talk:List of pantheists

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Please comment on Talk:List of brightest stars

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Please comment on Wikipedia talk:Manual of Style

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Please comment on Talk:Nobel Prize controversies

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Please comment on Talk:Neuro-linguistic programming

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Please comment on User talk:Tazerdadog/Tau (Proposed mathematical constant)

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Please comment on Talk:Norwegian Scientific Index

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Please comment on Talk:Migraine

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Please comment on Talk:NGC 6357

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Please comment on Talk:Map projection

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Please comment on Wikipedia talk:WikiProject Severe weather

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Please comment on Talk:Water fluoridation

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Please comment on Talk:Computus

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Please comment on Talk:Bicycle helmets in Australia

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Please comment on Talk:Silk Road (marketplace)

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Please comment on Talk:Suicide

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Please comment on Talk:Christian Science

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Please comment on Talk:Flare (pyrotechnic)

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Please comment on Talk:BP

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Please comment on Talk:Dodge City, Kansas

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Please comment on Talk:Air France Flight 447

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Please comment on Talk:Life on Mars

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Please comment on Talk:Ribbon (computing)

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Please comment on Talk:India Against Corruption

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Please comment on Talk:Coeliac disease

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Please comment on Talk:Methylene blue

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Please comment on Talk:March Against Monsanto

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Please comment on Talk:Race and genetics

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Please comment on Talk:Flickr

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Please comment on Talk:List of F5 and EF5 tornadoes

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Please comment on Talk:List of Unix daemons

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Please comment on Talk:Smallpox

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Please comment on Talk:SkyDrive

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Please comment on Talk:Acupuncture

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Please comment on Talk:Manned mission to Mars

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Please comment on Talk:Planetary protection

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Please comment on Talk:Grammarly

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Please comment on Talk:Observable universe

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Please comment on Talk:Mazda B-Series

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Please comment on Talk:North American Water and Power Alliance

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Please comment on Talk:Mars sample return mission

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Please comment on Talk:BP

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Please comment on Talk:Final Cut Pro

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Please comment on Talk:March Against Monsanto

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Please comment on Talk:Ashkenazi Jews

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Please comment on User:Brews ohare/ontological pluralism

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Please comment on Talk:Microsoft Minesweeper

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Please comment on Talk:Yuilop

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Please comment on Template talk:Infobox video game

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Please comment on Talk:Roundup (herbicide)

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Please comment on Talk:Conceptualization (information science)

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Please comment on Talk:Séralini affair

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Please comment on Wikipedia talk:WikiProject Mathematics

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Please comment on Talk:Pathology

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Caffeine

Hello. Since you promptly reverted me without explaining why, perhaps you'll be kind enough to explain what the sentence means. RivertorchFIREWATER 06:27, 7 January 2017 (UTC)

Magnesium hydroxide

Please explain why you have reverted my edits on the basicity of magnesium hydroxide. The value you have restored (pKb = 2.6) is completely unsourced and does not specify what reaction it refers to: Brønsted basicity to give Mg(OH)(OH2)+ or dissociation of OH-. I have found a source which gives two values: Kb1 for dissociation from Mg(OH)2 and Kb2 for dissociation from Mg(OH)+. If this is incorrect I would like to know why. Unsourced and unexplained values are not supposed to stay in Wikipedia, especially if sources are available. Dirac66 (talk) 02:59, 7 January 2017 (UTC)

OK, thanks for reply on my talk page. It appears you hit the undo button by accident. I have now restored my edit. Dirac66 (talk) 12:07, 7 January 2017 (UTC)

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Removal of sourced content

I have no idea what is up with this, but that reversion is unsustainable under any policy or guideline.

  Please stop your disruptive editing. If you continue to blank out or remove portions of page content, templates, or other materials from Wikipedia without adequate explanation, you may be blocked from editing. Thank you. Jytdog (talk) 13:49, 11 January 2017 (UTC)

The fat finger excuse. My browser sometimes shifts. I thought I had caught the inadvertent rollback, but I must have missed on. My apologies. JSR (talk) 13:56, 11 January 2017 (UTC)
Understood. I've been dealing with a problematic editor on that article and am crabby. warning struck, and my apologies for that! Jytdog (talk) 14:03, 11 January 2017 (UTC)

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AKD

OK, I put up a skeletal article on AKD and ASA. Please edit or leave comments so that we can get this thing to the level that it is helpful to reader. Some possible art: picture of an ASA. Most important might be a picture of the reactions of AKD and ASA with cellulose, although it is not clear if this aspect is really known. Some comment on the different ways ASA and AKDs are deployed would be appropriate. --Smokefoot (talk) 16:29, 15 January 2017 (UTC)

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Weight of Fuel ?

A tank containing say 10,000L of fuel is to be lifted.

Ignoring the weight of tank itself, how heavy would the tank weigh if filled fully?

Wikipedia does not seem to say succinctly, if at all, how heavy different kinds of fuel weigh.

Can you provide these answers, for say

  • petrol (gasoline)
  • diesel fuel
  • LPG
  • etc. Tabletop (talk) 01:28, 18 January 2017 (UTC)
If you know the density, you can calculate that. The articles list density. JSR (talk) 03:05, 18 January 2017 (UTC)

Ethanol Removal

Thanks for telling me about you reverting my Ethanol edit. The article might have had some bias signs in it. Cass — Preceding unsigned comment added by Cassini127 (talkcontribs) 01:15, 20 January 2017 (UTC)

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Then migraine section should be deleted too

very similar to the one I found, and for the other 6 diseases it says there is no benefit, and those sections are allowed to stand but not my contribution — Preceding unsigned comment added by Granito diaz (talkcontribs) 21:09, 16 February 2017 (UTC)

We shall see, you are probably correct. Considering what I am seeing for most of the stuff in that section, it may be time to weed it out.JSR (talk) 23:16, 16 February 2017 (UTC)

Please comment on Wikipedia talk:WikiProject Chemistry

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Again, why does my edit gets COMPLETELY OBLITERATED?

It cannot be restored, in case it is proven right.

Doesn't make sense, you had already deleted it, it was not visible to anyone, why delete it completely?

I didn't completely delete it. It is readily available if you check the history. JSR (talk) 22:28, 20 February 2017 (UTC)
Removed due to copyright violations. JSR (talk) 22:32, 20 February 2017 (UTC)

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It doesn't matter, but then again maybe it does

  The Original Barnstar
For trying to do the right thing, and succeeding remarkably. ~~~~

--Smokefoot (talk) 03:25, 12 March 2017 (UTC)

Smokefoot, thanks.JSR (talk) 01:09, 13 March 2017 (UTC)

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Thank you

Thank you for your correction. I apologize for my error. Please feel free to check up on my editing any time. btw - you are amazingly prolific for a newer editor. I appreciate your work and I am very impressed.

Best Regards,
Barbara (WVS)   21:17, 22 March 2017 (UTC)
Thanks. I have been doing this for 6 years, so I'm not sure I am that new. JSR (talk) 21:29, 22 March 2017 (UTC)

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What I heard ...

I asked around but did not get a clear answer about the thionyl chloride reactivity - giving alkyl chloride vs sulfite ester. It may well be stoichiometry, such that heating ROS(O)Cl, HCl with a trace of SOCl2 or other Lewis acid would give the alkyl chloride. My organic colleague did explain that the mechanism changes for tertiary vs primary alcohols. I notice that Voss et all keep temp low and sparge to remove HCl. --Smokefoot (talk) 23:39, 18 April 2017 (UTC)

See dimethyl sulfite. I think it involves not forming RSOCl, which is unstable. Two moles of alcohol forms the sulfite.JSR (talk) 00:10, 19 April 2017 (UTC)

Trinitrotoluene

On the page NFPA 704, it states that a compound with a flash point above 93.3 oC is considered to have a rating of 1. THe flash point stated in the trinitrotoluene article is 167 oC. Should I not be using this? Thanks, RedPanda25 21:17, 19 April 2017 (UTC)

That is making things up as you go. TNT is a special case. You need someone's MSDS to tell you that. I have looked. They all put it at 4.JSR (talk) 21:19, 19 April 2017 (UTC)

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Sock

Regarding [12], he's actually never left...WP:RBI and get on with your better life that theirs:) Feel free to ping me for the "B" part of that or to dig further. Often one edit helps find some sleeper/old ones that were not on our watchlists. DMacks (talk) 04:04, 3 May 2017 (UTC)

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Trinitrotoluene

[13] Hello JohnSRoberts,
Concerning the TNT article, I changed the flammability because these 3 things disagreed:

  1. The article on NFPA 704, which states that a compound has a flammability rating of 1 if its flash point is over 93°C.
  2. The stated flammability rating of 4.
  3. The stated flash point of 167°C.

There was a source for 1, but not 2 or 3, so I changed 2. Can you please tell me what I did wrong?
RedPanda25 01:19, 8 May 2017 (UTC)

Did you check other SDSs for the product? If you had, you would have noted that they have it as a 4. We are not responsible for doing classification of chemicals. Others do it based on their better knowledge of the chemicals involved.JSR (talk) 11:31, 8 May 2017 (UTC)
So following sources is more important than internal consistency? Another source I found states the flash point at 290°C, and another source states that trinitrotoluene explodes before it burns, meaning that it has no flash point.

Thanks, RedPanda25 15:05, 8 May 2017 (UTC)

Exploding before it burns is probably a pretty good hint about flammability. Don't get it hot. Internal consistency, particularly if it flies in the face of manufacturer's safety data sheets, is a bad idea.JSR (talk) 15:47, 8 May 2017 (UTC)
Okay, I understand. But what flash point should be listed, 167°C, 290°C, or something else entirely? RedPanda25 16:41, 8 May 2017 (UTC)
I would not list one. The first reference you listed above said that the flash point was greater than the autoignition temperature, at which point it explodes. That makes no sense. That may be an iffy source also. The second reference said that it explodes. So, the answer should be, "Explodes".JSR (talk) 16:58, 8 May 2017 (UTC)
Thank you, change made. RedPanda25 18:02, 8 May 2017 (UTC)

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Hypophosphorous acid

[31] Hello JohnSRoberts,
Concerning the hypophosphorous acid article, I changed the name because I have searched for "pseudo-tetrahedral" I only find articles related to transition metal complexes (and the Wikipedia article). It would make sense to call it "approximately tetrahedral" rather than simply tetrahedral, as the bulky oxygens can distort the geometry, but "pseudo-tetrahedral" makes no sense in this context. Can you please explain why you changed lit back?
RedPanda25 01:28, 8 May 2017 (UTC)

As a note, the article on Phosphorous acid, a related compound, simply states "tetrahedral" for geometry. RedPanda25 01:29, 8 May 2017 (UTC)
It does mean approximately tetrahedral, but it is properly called pseudotetrahedral.JSR (talk) 11:58, 8 May 2017 (UTC)
I have not seen one source that calls it "pseudo-tetrahedral". Also, what is the difference between "pseudo-tetrahedral" and "approximately tetrahedral"? RedPanda25 15:01, 8 May 2017 (UTC)
If you can find a source that gives its' molecular geometry, go for it.JSR (talk) 15:49, 8 May 2017 (UTC)
The first source I found, PubChem, showed the structure to be analogous to nitrous acid... I'm sure that's not right. RedPanda25 17:27, 8 May 2017 (UTC)
It was originally added in 2005 by User:Physchim62. You may have to ask him where he got it. He did not cite any references.JSR (talk) 17:46, 8 May 2017 (UTC)
User:Physchim62's last edit was 7 months ago, so I doubt we will get a response. I would say that he intended it to mean the same as "approximately tetrahedral". RedPanda25 18:18, 8 May 2017 (UTC)
I would say he intended to say pseudo-tetrahedral. It is that way as it has two arms of the same bond length (P-H) and then a third of different length P-OH). Pseudo-tetrahedral has meaning to a chemist and the literature is full of references to it. The only other change I could suggest would be to just remove reference to structure completely. Cotton & Wilkinson and Greenwood & Earnshaw are silent regarding structure.JSR (talk) 18:22, 8 May 2017 (UTC)
Ah, that makes sense. I'll leave how it is, but it would be helpful to link to an article describing what the term means. RedPanda25 18:58, 8 May 2017 (UTC)
How about "distorted tetrahedral". "Pseudo" sounds like it could have some technical meaning, or at least a specific kind of distortion. I see "distorted [some basic geometry]" in both undergrad and original scientific literature for all sorts of compounds, and also in the names of specific kinds of it (e.g., Jahn–Teller distortion). DMacks (talk) 20:31, 8 May 2017 (UTC)

Yes, that could work. But why not just tetrahedral? I really don't find much on the subject in any major source. Maybe Smokefoot can come up with an Ulmann's source? JSR (talk) 23:04, 8 May 2017 (UTC)

It would be a bad idea to call it "distorted tetrahedral", as that often refers to the "seesaw" geometry of SF4. "Tetrahedral" could certainly work, but it would help to clarify that it is not a perfect tetrahedron in the way that methane is. RedPanda25 14:06, 9 May 2017 (UTC)
The "that often refers to seesaw" is not in keeping with a cursory check of the literature. Or at least the most common uses are for not that sort of distortion, but rather to the lay-language or general idea rather than that specific type. DMacks (talk) 03:01, 10 May 2017 (UTC)
I have seen multiple chemistry textbooks that refer to it that way. RedPanda25 20:32, 10 May 2017 (UTC)
As have I, typically among other distortions (I already linked another example called a distortion), so "a distorted tetrahedron", not "the specific geometry formally called 'distorted tetrahedron'" (as you note, the formal name seems instead to be "Seesaw molecular geometry"). There's no reasonable case where a tetrahedral intermediate (Gold Book defined as simply "tetrahedral") is actually a perfect tetrahedron. DMacks (talk) 08:25, 11 May 2017 (UTC)
So do we agree that the best thing to say is "tetrahedral"? RedPanda25 01:04, 17 May 2017 (UTC)

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