Fluosilicic Acid


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fluosilicic acid

[¦flü·ə·sə′lis·ik ′as·əd]
(inorganic chemistry)
H2SiF6 A colorless acid, soluble in water, which attacks glass and stoneware; highly corrosive and toxic; used in water fluoridation and electroplating. Also known as hydrofluorosilicic acid; hydrofluosilicic acid.

Fluosilicic Acid

 

H2SiF6, a strong inorganic acid. It can exist only in an aqueous solution; in the free state it decomposes into silicon tetrafluoride, SiF4, and hydrogen fluoride, HF. Fluosilicic acid is a powerful disinfectant, but it is primarily used in the preparation of its salts (fluosilicates).

References in periodicals archive ?
The researchers conclude that several factors can produce more corrosion than either of the disinfectants or fluoridating agents alone: "One such factor is that fluosilicic acid, the most widely used fluoridating agent, is a good solvent for lead.
Related research showed that in communities where fluosilicic acid is added to the drinking water, the "prevalence of children with elevated blood lead (PbB > 10 micrograms/dL) is about double that in non-fluoridated communities." (91) Recent research suggests that a biological mechanism not yet recognized may underlie this epidemiological association.
Concentration of 30-54% phosphoric acid releases large volumes of silicon tetrafluoride and in most processes is recovered as fluosilicic acid.