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单词 Acidulated Phosphate Fluoride
释义

Acidulated Phosphate Fluoride

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Hexafluorosilicic acid

Hexafluorosilicic acid is an inorganic compound with the chemical formula (H
3
O)
2
SiF
6
(also written as (H
3
O)
2
[SiF
6
]
). It is a colorless liquid rarely encountered undiluted. Hexafluorosilicic acid has a distinctive sour taste and pungent smell. It is mainly produced as a precursor to aluminum trifluoride and synthetic cryolite. It is commonly used as a source of fluoride for water fluoridation. Concentrated hexafluorosilicic acid is corrosive, highly toxic and can attack the skin, but in everyday use, it is so diluted as to be harmless.

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更新时间:2025/6/23 9:55:30