Fluosilicic

Related to Fluosilicic: hydrofluosilicic acid

Flu`o`si`lic´ic


a.1.(Chem.) Composed of, or derived from, silicon and fluorine.
Fluosilicic acid
a double fluoride of hydrogen and silicon, H2F6Si, obtained in solution in water as a sour fuming liquid, and regarded as the type of the fluosilicates; - called also silicofluoric acid, and hydrofluosilicic acid.
References in periodicals archive ?
Tenders are invited for Provide fluosilicic acid to our water treatment plant.
Chloramine will also react with fluosilicic acid, the most widely used water fluoridating agent, to produce ammonium fluosilicate, an established solvent for copper alloys.
SDSDW is a collective body of individuals, including dentists, doctors, scientists, journalists, engineers, other professionals, and members of the public at large who are opposed to the treatment of San Diego's water with toxic waste, fluosilicic acid water.
The original state fluoride bill AB 733 also does not mention or authorize use of fluosilicic acid as a usable source of fluoride.
This hydrometallurgical method consists of leaching galena synthetic mixtures or concentrates in waste fluosilicic acid ([H.
Letter from Rebecca Hanmer, Deputy Assistant Administrator for Water, to Leslie Russell re: EPA view on use of by-product fluosilicic (sic) acid as low cost source of fluoride to water authorities.
In regard to the use of fluosilicic (fluorosilicic) acid as a source of fluoride for fluoridation, this agency regards such use as an ideal environmental solution to a long-standing problem.
By 1983, the official EPA policy was expressed by EPA Office of Water Deputy Administrator Rebecca Hanmer as follows: "In regard to the use of fluosilicic (fluorosilicic) acid as a source of fluoride for fluoridation, this agency regards such use as an ideal environmental solution to a long-standing problem.
Concentration of 30-54% phosphoric acid releases large volumes of silicon tetrafluoride and in most processes is recovered as fluosilicic acid.
This well-designed study found that when fluosilicic acid (the chemical most often used to fluoridate drinking water) is combined with disinfection chemicals, it worsened the leaching of lead from brass elbows and brass water meters.
Research published in the December 2000 issue of the journal Neurotoxicology warns that public drinking water treated with sodium silicofluoride or fluosilicic acid, known as silicofluorides (SiFs), is linked to higher uptake of lead in children.
By recovering by-product fluosilicic acid from fertilizer manufacturing, water and air pollution are minimized and water utilities have a low-cost source of fluoride available to them.