Talk:Bone ash

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I'am some what curious. Which animal do the bone come from??? Curious.

If we *must* include a link for 'synthetic' can we make sure to pick the right one? "Synthetic bone ash" is a material chemically very similar to bone ash but prepared from non-bone sources. - Jaeger5432 16:02, 24 August 2006 (UTC)Reply

Bone Ash has also been used for metallurgy; extracting gold from impure alloys. See the Ascent of Man, episode 4, The Hidden Structure. — Preceding unsigned comment added by 134.151.0.20 (talk) 10:19, 11 June 2013 (UTC)Reply

Bone ash is not normally used in machine shops.

Latest comment: 3 years ago1 comment1 person in discussion

I've renamed the Machining section because the stated uses better fit aluminium and copper foundries. Except for the use as a polishing compound, everything makes more sense in the context of proximity to molten metals. For example, powder coating using bone ash would require refractory metal substrates, because even high alloy steels would melt before the bone ash did. I think they're describing a thermal barrier coating or release agent for foundry implements, http://www.ebonex.com/boneash.html , https://link.springer.com/chapter/10.1007%2F978-3-319-48228-6_135 , and https://www.sonac.biz/markets/other-markets/sonac-bone-ash/ match that usage.

I don't dispute the use of bone ash as a polishing compound in machine shops. I've never used it, and I can't find anything referencing its use as an abrasive, but at least it's possible. 125.168.243.113 (talk) 09:35, 20 April 2021 (UTC)Reply

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