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The paper says that they're decomposed into fluorine ions. Probably some other byproducts as well, but they specifically called out fluorine ions.
by GenerWork 2y ago
The paper says that they're decomposed into fluorine ions. Probably some other byproducts as well, but they specifically called out fluorine ions.
- bamboozled 2y agoAre these supposed to be less harmful to living things?
- bejdjndbe 2y agoSignificantly. Almost any toothpaste contains Flourine compounds and the US even dumps tons of Flourine into the drinking water to give residents whiter tooth. It's not harmless (nothing is) but much less harmful
- kurthr 2y agoWhitening involves peroxide not fluoride. Fluoride hardens enamel and reduces dental caries (cavities).
- deleted 2y ago[deleted]
- kragen 2y agonot in themselves, but the paper explains that you can easily precipitate them with calcium ions to form fluorite, which is inert and not harmful to living things. in fact reacting with calcium ions to form inert fluorite is the main reason fluoride ions are toxic to living things, because without calcium ions, lots of biological processes fail, most urgently including neurons firing; if you get a possible fluoride overdose they inject you with calcium salts to compensate because of this rapid precipitation, fluoride ions don't really bioaccumulate in the conventional way, but since some of them do deposit in your teeth and bones, chronic exposure can result in fluorosis, which discolors teeth and makes bones harder but more brittle. very high chronic exposure levels cause neurological damage, dementia, etc. 100% natural dementia from mineral water!