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n.1.(Chem.) A fluosilicate; a salt of silicofluoric acid.
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In 1958, it was calculated that to implement a water fluoridation program in the capital city of Caracas, which used about 300,000 cubic meters of water daily for that epoch, 500 kilograms of sodium silicofluoride would be required and cost about 400,000 bolivars annually (180).
Suppliers add chemicals including fluorosilicic acid, aluminium sulphate, calcium hydroxide and sodium silicofluoride to make water safe to drink.
Tenders are invited for Supply and delivery of: liquid aluminum sulfate; chlorine; carbon dioxide; sodium; silicofluoride; polymer (coagulant aid); anhydrous ammonia; liquid oxygen.
The readily water-soluble industrial fluorides (sodium fluoride, sodium silicofluoride, fluorosilicic acid) used to artificially fluoridate drinking water are rapidly and almost completely absorbed, in contrast to low-soluble natural compounds such as calcium fluoride.
gestation (silicofluoride is the fluoride compound used most commonly for fluoridated water in the US, Canada and other countries).
When it is artificially added to water supplies by local water treatment plants, it is usually in the forms of hydrofluosilicic acid, sodium silicofluoride or sodium fluoride, which are commonly sourced from phosphate fertiliser manufacturers or aluminium smelters.
It is clear that [Al.sup.3+] toxicity, interacting synergistically with other toxicants such as solvated species of [Hg.sup.2+], [Pb.sup.2+], [F.sup.-], [AlF.sub.x] (aluminofluoride), [SiF.sub.x] (silicofluoride), glyphosate, and including chelation complexes, must directly increase biosemiotic entropy on multiple levels simultaneously by disrupting long-range, dynamical, interfacial hydrogen bond cooperativity and the quantum coherence of water.
NMR studies confirm that fluorosilicic acid fully dissociates into fluoride ion and silicic acid at community water pH but forms a silicofluoride complex at pH 3 (identified as Si[F.sub.5.sup.-]) (Finney et al.
More important, peer reviewed data over the last decade reveal that these effects are substantially exacerbated by the practice of adding hydroflurosilicic acid or sodium silicofluoride to our public water supplies delivered to 160 million Americans.
However, a 1999 study in Massachusetts and a 2000 study in New York reported associations between the use of silicofluoride compounds in community water systems and elevated blood lead (PbB) concentrations in children.
The ``fluoride'' used is a toxic waste by -product of superphosphatefertilizer manufacture (silicofluoride) containing many impurities.
Sodium Fluorosilicate formally labeled Sodium Silicofluoride (Na2SiF6)