Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Hexafluorosilicic acid is an inorganic compound with the chemical formula H 2 SiF 6 also written as (H 3 O) 2 [SiF 6].It is a colorless liquid mostly encountered as diluted aqueous solution, from there, the second chemical notation also proposed. The argu­ ments of anti-fluoridationists and fluoridation propo­ nents are examined with respect to the politics of the issue. Safety Information on Fluorosilicic Acid from a provider. Elemental fluorine is produced from it. VIOLENT OFFENDERS HAVE SIGNIFICANTLY HIGHER LEVELS OF LEAD. NACRES NA.21 Piranha Solution . Silico fluorides used as fluoridating agents contain lead and carcinogenic arsenic and studies by Masters and Coplan, (1999) show an association between the use of fluorosilicic acid (and its sodium salt) in fluoridated water and an increase uptake of lead into children's blood. Fluorosilicic acid (FSA), an inorganic fluoride compound, is a waste product of synthetic fertilizer production. Due to its ease of use over competing technologies, hydroflurosilic acid is commonly used in water fluoridation applications. Molecular Weight 144.09 . An image purporting to show the dangers of fluoride in tap water by comparing it to the fluoride concentration in inedible toothpaste has been shared on Facebook. Linear Formula H 2 SiF 6. This is the most common method of adding fluoride to drinking water supplies in Western Australia. Sodium fluorosilicate: a dry salt additive, dissolved into a solution before being added to water. Toxic effects are principally related to its corrosive properties. Fluorosilicic acid (FSA), an inorganic fluoride compound, is a waste product of synthetic fertilizer production. Upon vaporizing, it decomposes into hydrofluoric acid (HF) and silicon tetrafluoride. 7732-18-5 76 Not classified Fluorides, as F 19 Not classified . Dangers of Fluoridating Drinking Water with fluorosilic acid (H 2 SiF 6)/sodium fluorosilicate (Na 2 SiF 6) Author: Gary O. Pittman. Fluorosilicic acid is also referred to as hydrofluorosilicate, FSA, or HFS. Fluoride is now used in the public drinking water supplied to about 3 out of 4 Americans. residue ≤5 ppm density 1.15 g/mL at 25 °C (lit.) In fact the relevant species is the fluoride anion whatever the source – NaF, CaF 2 or fluorosilicic acid. May be fatal if inhaled or swallowed. Fluorosilicic acid (CAS No.) Silico fluorides used as fluoridating agents contain lead and carcinogenic arsenic and studies by Masters and Coplan, (1999) show an association between the use of fluorosilicic acid (and its sodium salt) in fluoridated water and an increase uptake of lead into children's blood. ≤0.01% fluorosilicic acid ign. 16961-83-4 24 Acute Tox. Powered by Create your own unique website with customizable templates. 2 (Inhalation:dust,mist), H330 Skin Corr. Coplan, (1999) show an association between the use of fluorosilicic acid (and its sodium salt) in fluoridated ... of properly done scientific studies warning about the short and long term dangers of fluoridation and the evidence is gathering of the disastrous … eCl@ss 38130308 . DANGERS OF URBAN FLUORIDE. Breathing FSA’s fumes causes severe lung damage or death; an accidental splash on skin leads to burning and extreme pain. 1A, H314 Eye Dam. Fluorosilicic acid is a waste product of the phosphate fertilizer industry and is heavily contaminated with toxins and heavy metals (including the cancerous arsenic, lead and cadmium) and radioactive materials. Fluoridation and its Dangers ... (1999) show an association between the use of fluorosilicic acid (and its sodium salt) in fluoridated water and an increase uptake of lead into children's blood. The claim is false; experts say that only a very high level of fluoridated tap water or toothpaste consumption is toxic. The petition calls for the EPA to instead require the use of pharmaceutical-grade sodium fluoride in water fluoridation, which is the addition of fluoride to drinking water for the purpose of preventing cavities. 1, H318 Aquatic Acute 3, H402 Water (CAS No.) Le règlement REACH vise à renforcer la protection de la santé humaine et de l’environnement contre les risques que peuvent engendrer les produits chimiques. Breathing FSA's fumes causes severe lung damage or death; an accidental splash on skin leads to burning and extreme pain. Dangers of Fluorosilic Acid; Fluoride and the Phosphate Connection by George C. Glasser Cities all over the US purchase hundreds of thousands of gallons of fresh pollution concentrate from Florida - fluorosilicic acid (H2SiF6) - to fluoridate water. This is the same for fluorosilicic acid in drinking water as the fluoride anion is the end product of its hydrolysis when added to water. Along with the severe life-threatening dangers to health listed on the first page (repeating what we have covered), it lists fluorosis: Long-term exposure to Silicofluoric Acid can cause the deposit of Fluoride in the bones and teeth, a condition called Fluorosis. Sodium Fluoride and Fluorosilicic Acid, two synthetic byproducts of industrial waste both used in the fluoridation of public water, ... Opposers of fluoridation claim that the government issuance of a lower threshold is evidence that the dangers of fluoridation are becoming more evident. Urban fluoride (FLUOROSILICIC ACID) affects the body and brain. FLUOROSILICIC ACID Hexafluorosilicic acid Dihydrogen hexafluorosilicate Fluosilicic acid Hydrosilicofluoric acid F 6 H 2 Si Molecular mass: 144.1 CAS # 16961-83-4 RTECS # VV8225000 ICSC # 1233 UN # 1778 EC # 009-011-00-5 Causes severe … “In regard to the use of fluorosilicic acid as a source of fluoride for fluoridation, this agency regards such use as an ideal environmental solution to a long-standing problem. Currently, the source of fluoride in most public water supplies is fluorosilicic acid, according to government records. Dangers physiques Dangers pour la santé Dangers environnementaux Éléments d’étiquetage Mention d'avertissement Mention de danger Danger Peut être corrosif pour les métaux. Fluosilicic acid purum, 33.5-35% Synonym: Fluorosilicic acid, Hexafluorosilicic acid, Hydrogen hexafluorosilicate CAS Number 16961-83-4. Emergency telephone numbers I Nanoscale elemental powders and suspensions, as alternative high surface area forms, may be considered. 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