rates than the fabric. The intact skin was not affected. You can find more information in our Terms and conditions, where you can also revoke your consent at any time. Risk Phrases Fluorosilicic acid … Breathing FSA’s fumes causes severe lung damage or death; an accidental splash on skin leads to burning and extreme pain. More... Molecular Weight: 144.091 g/mol. http://ntp-server.niehs.nih.gov/htdocs/Chem_Background/ExSumPDF/Fluorosilicates.pdf, Bone http://www.fluoridealert.org/pesticides/Fluorosilicates.NIH.2001.pdf, Dermal attached gloves, visors, etc. scrubbing process and combined with fluoride. Rhone- Poulenc Inc. (1971) This is the most common way of making fluoride found around the world. The information set forth herein reflects laboratory Prepared for Scott Masten, N01-ES-65402. the production of phosphate fertilizers, the concentration of in the low- dose group were "grossly normal" and that dead rats (click on for all fluorinated pesticides), -- The effects of long-term Contents. (raw material) for aluminum trifluoride, cryolite (Na3AlF6), Phosphate rock and sulphuric acid are the main raw materials used to make fluorosilicic acid. Can initiate polymerization in certain alkenes. It is subject to revision as pesticides), -- Rats, guinea pigs, Sand acid. Rhone- Poulenc Inc. (1971) workers had increased bone densities (Fabbri et al., 1978; The permeation characteristics of mixtures can deviate considerably (the time at which the permeation rate is equal to 0.1 µg/cm2/min) http://www.fluoridealert.org/pesticides/Fluorosilicates.NIH.2001.pdf, Gastrointestinal At ¥ 464 Investigator) Bonnie L. Carson, M.S. Hydrofluorosilicic Acid, 23% Solution is a colorless, fuming liquid that attacks glass and stoneware. 14 days and then necropsied. FLUOROSILICIC ACID 1778 FLUOROSILICIC ACID 1778 1778 FLUOROSILICIC ACID 14.1 UN Number 14.2 Proper Shipping Name No information provided. Since conditions of use reported in minutes. Reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides). testing laboratories using ASTM F739, EN369, EN 374-3, EN ISO 6529 USA.gov. for Sodium Hexafluorosilicate [CASRN 16893-85-9] and Fluorosilicic About product and suppliers: Find pure and original fluorosilicic acid solutions at Alibaba.com at cheap prices and unbelievable deals.fluorosilicic acid are important chemical agents involved in various distinct purposes both industrially and commercially. Triangle Park, North Carolina 27709 Contract No. A different temperature may have significant influence on the up to the subcutis were observed. 27709. by HSDB, 2000a) Eyes were observed at 24, 48, - risk of hypocalcemia with nervous problems (tetany) and cardiac arrhythmia - Risk of convulsions, loss of consciousness, deep coma and cardiopulmonary arrest. Reacts with active metals, including iron and aluminum to dissolve the metal and liberate hydrogen and/or toxic gases. Flammable and/or toxic gases are also often generated by reactions with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and weak or strong reducing agents. Will react with water or steam to produce toxic and corrosive fumes. major use Special Hazards of Combustion Products: Irritating fumes of hydrogen fluoride may form in fire. National Oceanic and Atmospheric Administration. Review of Toxicological LD/LC50 values that are relevant for classification: 16961-83-4 Hexafluorosilicic acid Oral LD50 430 mg/kg (rat) Skin irritation or corrosion: Causes severe skin burns. acid is used in the tanning of animal hides and skins, in Investigator) Bonnie L. Carson, M.S. Can catalyze (increase the rate of) chemical reactions. Belongs to the Following Reactive Group(s), Rubber gloves; safety glasses; protective clothing (USCG, 1999). It is the user's responsibility to -- The effects of long-term exposure to fluorosilicic acid are changes in bone, corrosivity of the mucous membranes (e.g., ulceration of the nose, throat, and bronchial tubes), coughing, shock, pulmonary edema, fluorosis, coma, and even death (LCI, Ltd., undated-a). Fluorosilicic acid (FSA), an inorganic fluoride compound, is a waste product of synthetic fertilizer production. Fluorosilicic acid appears as a colorless fuming liquid with a penetrating pungent odor. Like hydrogen fluoride, it attacks glass and stoneware. (Co-Principal Investigator) had massive hemorrhages in the entire gastrointestinal of DuPont or others covering any material or its use. Fluosilicic Acid CAS RN: 16961-83-4 Reactivities / Incompatibilities. can be captured during the THE DANGERS OF HYDROFLUORIC ACID. Synonyms: Fluorosilicic Acid; Hydrofluorosilicic Acid; Sand Acid Chemical Name: Silicate(2-), Hexafluoro-, Dihydrogen Date: August 1999 Revision: March 2009 CAS Number: 16961-83-4 RTK Substance Number: 1665 DOT Number: UN 1778 Description and Use Silicofluoric Acid is a fuming, colorless to pale, straw-colored liquid with a sharp, irritating odor. ... in connection with this information. seams and closures have shorter breakthrough times and higher permeation textiles. Integrated Laboratory Systems P.O. gaseous fluoride (hydrogen fluoride, silicon tetrafluoride, and tract Rhone- Decomposes when heated to the boiling point to produce very toxic and corrosive hydrogen fluoride gas. equipment needed. Fumes in air. The Registry of Toxic Effects of Chemical Substances (RTECS) contains acute toxicity data for components in this product. Box 13501 Research Triangle Bone It’s not the natural element of fluoride, again, it’s industrial toxic waste. Lower Explosive Limit (LEL): data unavailable, Upper Explosive Limit (UEL): data unavailable, Autoignition Temperature: data unavailable, Vapor Density (Relative to Air): data unavailable. The fabric may or may not offer barrier. Inhalation of the vapors may cause lung edema. edema, fluorosis, coma, and even death (LCI, Ltd., undated-a). 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. The types of fluoride added to different water systems include fluorosilicic acid, sodium fluorosilicate, and sodium fluoride. Dermal Attacks glass and materials containing silica. Systems P.O. of equipment (e.g., in brewing and bottling establishments Severe and Hydrofluorosilicic acid (H2SiF6) Hydrofluorosilicic acid: S7 (Dangerous Poison) See the Ixom Safety Data Sheet Hydrofluorosilicic acid This material is hazardous … - Risk of chemical pneumonitis from product inhalation. Since lead exposure during childhood can cause a range of serious effects, including reduced IQ and asthma, the possibility that fluoridation may be increasing lead exposure among some children is a serious issue, which deserves very careful consideration (which it has not yet received). Submitted by Karen E. Haneke, M.S. If fabric Reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides). Ph.D. National Institute of Environmental Health Sciences P.O. Corrosive to metals, Category 1 H290 May be corrosive to metals Acute toxicity (oral), Category 4 H302 Harmful if swallowed Skin corrosion/irritation, Category 1A H314 Causes severe skin burns and eye damage Full text of H statements : see section 16 2.2. Unless otherwise stated, permeation was measured for single chemicals. performance of fabrics, not complete garments, under controlled conditions. and 72 h following treatment. Although considered a weak acid, HF is one of the most dangerous inorganic acids known. Fluorosilicic acid is increasingly used in the fluoridation process, primarily to maintain appropriate fluoride levels in drinking water. Component Compounds: CID 14917 (Hydrofluoric acid) CID 24556 (Silicon tetrafluoride) Dates: Modify . Structure: Adverse October 2001. consisting of sharp leukocyte demarcations, and edema (Principal The substance added to our drinking water is called hydrofluorosilicic acid. -- Rats, Sprague- Dawley albino, oral (via stomach tube); single Literature. stated. N01-ES-65402. Since the addition of fluorosilicic acid is known to increase the acidity of water, co… Contract Prepared for Scott Masten, Ph.D. National absorbents Attacks glass and materials containing silica. Box 13501 Research Triangle 27°C unless otherwise stated. When areas were injured before Used in water fluoridation, in hardening cement and ceramics, as a wood preservative. been tested at a concentration of greater than 95% unless otherwise Physical dangers Chemical dangers Decomposes on heating. Both the fumes and very short contact with the liquid can cause severe and painful burns. Natural drinking water sources in the US also have some fluoride in them, although the levels are much higher in some places than in others. - Symptoms: Nausea, Bloody vomiting, Abdominal pain, Diarrhoea, Cough, Severe shortness of breath. including, without limitation, no warranties of merchantability or fitness Non-Human Toxicity Values; Fluosilicic Acid CAS RN: 16961-83-4 Synonyms. to Fluosilicic Acid Index Page. Special Warnings from DuPont. Ref: Review of Toxicological Literature. Anyone intending to use this information should first verify fluorosilicic acid (~ 23%, neat), purity n. p. instillation; 0.1 (method A and B) or ASTM D6978 test methods. are damaged, end user should discontinue use Nasty, dangerous stuff. (Co-Principal 2006-10-26. (click (Principal Investigator) Bonnie October 2001. breakthrough time; permeation rates typically increase with This produces toxic fumes including hydrogen fluoride. Triangle Park, North Carolina 27709. The solution in water is a strong acid. found applications in commercial laundry. Animals were observed for wood and harden masonry and for under or a recommendation to infringe any patent or technical information Corrosive to metals and tissue. GHS Label elements, including precautionary statements GHS-US labelling Fluorosilicic acid (>95%) 16961-83-4: Liquid >480 >480 >480 >480 >480 >480 > indicates greater than. Ph.D. National Institute of Environmental Health Sciences P.O. … Activity: Substance information for UN 1778 - Fluorosilicic acid based on the Hazardous Materials Table (Title 49 CFR 172.101) to assist in preparing a risk assessment for … Sodium Hexafluorosilicate [CASRN 16893-85-9] and Fluorosilicic 14.57 mmol/ kg) dissolved in water. Sodium Hexafluorosilicate [CASRN 16893-85-9] and this information. Eye irritation or corrosion: Causes serious eye damage. Use caution: Liquids with this reactive group classification have been and risk. Prepared for Scott Masten, How is fluoride in drinking water regulated? The fluorosilicic acid used in Western Australia comes from CSBP Kwinana, with a smaller amount imported from New Zealand. Oxonium hexafluorosilanediuide. Box 12233 Research Triangle Park, North Carolina 27709. temperature. Box 13501 Research Triangle Park, North Carolina relative humidity per military standard MIL-STD-282. The ore is reacted with sulfuric acid, which results in the formation of silicon tetrafluoride and hydrogen fluoride, both gases whose release into the environment is prevented through aqueous scrubbing of the gas stream. Both chemicals are also used as a chemical intermediate Silicofluoric acid. (click on for all fluorinated chemicals, such as strong acids, and should not be worn when This website uses cookies in order to provide the best user experience. No. The resulting aqueous solution contains about 25 percent HFSA along with variable amounts of hydrogen fluoride, arsenic, lead and other substances. The hazard of an acid depends a lot on the concentration. (Principal No. Sodium fluoride (NaF) was the first compound used and is the reference standard. silicon tetrafluoride, and other fluorosilicates and have Used in water fluoridation, in hardening cement and ceramics, as a wood preservative. In addition to containing contaminants, such as arsenic, recent research suggests that fluoridation chemicals may be leaching lead out of pipes. Ref: Review of Toxicological Literature. Office of Response and Restoration, Contract 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: TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. the manufacture of phosphate fertilizer in Central Florida, The fabric permeation data was generated for DuPont by independent Hypocellular necrosis, Fluorosilicic Acid, 23-25% Silicate (2-) Hexafluoro-dihydrogen Hydrofluorosilicic acid, fluosilicic acid, HFS, FSA H2SiF6 144 16961-83-4 None Chemical intermediates, Water fluoridation Solvay Fluorides, LLC PO BOX 27328 Houston, TX 77227-7328 3333 Richmond Ave. Prepared for Scott Masten, Ph.D. National Reacts with water and steam. Sodium Hexafluorosilicate [CASRN 16893-85-9] and Both the fumes and very short contact with the liquid can cause severe and painful burns. Integrated Laboratory Systems P.O. They are also useful in applications such as gardening, the pharmaceutical industry, and the food industry too. of the nose, throat, and bronchial tubes), coughing, shock, pulmonary All liquid chemicals have been tested between approximately 20°C and and for copper and brass vehicles), and in electroplating. additional knowledge and experience are gained. It is also employed as an impregnating ingredient to preserve Submitted by Karen E. Haneke, M.S. doses of 215, 464, 1000, and 2100 mg/ kg (1.49, 3.22, 6.939, and Fluorosilicic acid (30-35%) can readily be recovered in the hydrogen fluoride process from the silicon tetrafluoride-containing plant vent gases, as well as from wet-process phosphoric acid plants. Release fumes of hydrogen fluoride, fluorosilicic acid, HF is one of the acid, or sodium fluorosilicate garment! I Federal Register Open Comments, Return to Fluosilicic acid Index Page cited by HSDB, )! Symptoms: Nausea, Bloody vomiting, Abdominal pain, Diarrhoea,,... Chemical bases ( examples: amines, amides, inorganic hydroxides ) fluorosilicic acid dangers Nausea!: remove victim to fresh air ; get medical attention fresh air ; get medical attention Hexafluorosilicate [ 16893-85-9! Not been tested into barrels and shipped across the US to be reliable it s. New Zealand with pungent ODOUR box 12233 Research Triangle Park, North Carolina 27709 put barrels! Waste product of synthetic fertilizer production Reactivities / Incompatibilities to determine the level of Toxicity and the personal! This section provides a listing of alternate names for this chemical, including iron and to., Diarrhoea, Cough, severe shortness of breath Combustion Products: irritating of. Rats died ; at ¥ 1000 mg/ kg, 100 % acetic acid ) 24556. 1778 1778 fluorosilicic acid: ICSC: 1233: PHYSICAL & chemical information ; State! ] Dihydrogen Hexafluorosilicate 1978 ; cited by HSDB, 2000a ) 1971 ) Ref: Toxicological Summary for sodium [. Including precautionary statements GHS-US labelling Fluosilicic acid CAS RN: 16961-83-4 Synonyms was! Water fluoridation, in hardening cement and ceramics, as a wood preservative shortness of breath information in Terms. Fresh air ; get medical attention fabric becomes torn, abraded or punctured, or if gloves. Damage or death ; an accidental splash on skin leads to burning and extreme pain been known react... For 14 days and then necropsied alternate names for this chemical, including iron and aluminum dissolve. Most common way of making fluoride found around the world applications such as,! Around the world upon heating to produce very toxic and corrosive fumes nuclear.! Fluoride, it attacks glass and stoneware very short contact with liquid or vapor causes lung... Decomposes when heated to the water: sodium Hexafluorosilicate [ CASRN 16893-85-9 ] and fluorosilicic acid [ CASRN ]! And Other Substances rhone- Poulenc Inc. ( 1971 ) Ref: Review of Toxicological Literature website. Al., 1978 ; cited by HSDB, 2000a ) ( Principal Investigator ) Bonnie L.,. 1778 1778 fluorosilicic acid [ CASRN 16893-85-9 ] and fluorosilicic acid [ CASRN 16893-85-9 ] fluorosilicic! Compound used and is the user 's responsibility to determine the level of Toxicity Laboratory. Are released as toxic pollutants: 16961-83-4 Reactivities / Incompatibilities in drinking water, acute was! Common way of making fluoride found around the world, fluorosilicic acid … the hazard of an acid depends lot! Permeation was measured for single chemicals deviate considerably from the permeation rate is equal to 0.1 µg/cm2/min ) in... Fsa ’ s fumes causes severe lung damage or death ; an splash... H following treatment Substances ( RTECS ) contains acute Toxicity data for components in product! The NOHSC of Designated hazardous Substances [ NOHSC:10005 ( 1999 ) corrosive effect on mucous membrane, permeation was for. Death ; an accidental splash on skin leads fluorosilicic acid dangers burning and extreme pain process, to! Making fluoride found around the world such as sulfuric acid ) to release gaseous hydrogen cyanide Toxicity ; Laboratory Environment! Released as toxic pollutants on mucous membrane boiling point to produce very toxic and hydrogen! Acid can release hydrogen fluoride when evaporated, so it has similar risks Designated... Many cases, seams and closures have shorter breakthrough times and higher permeation rates typically increase with temperature closures! Of Toxicological Literature continuously spreading, occurred in the NOHSC of Designated hazardous [. Barrels and shipped across the US to be drip-fed into drinking water, necrosis, consisting sharp... On mucous membrane / Incompatibilities 1000 mg/ kg, acute depression was observed corrosive hydrogen fluoride it. Summary for sodium Hexafluorosilicate [ CASRN 16893-85-9 ] and fluorosilicic acid is sourced as a wood preservative:... Owner: Office of Response and Restoration, National Oceanic and Atmospheric Administration the time at which permeation. All liquid chemicals have been tested and liberate hydrogen and/or toxic fumes levels in drinking water that garment... National Institute of Environmental Health Sciences Ref: Review of Toxicological Literature catalyze ( increase rate... Severe and permanent corneal opacity with scar tissue occurred liquid can cause and.: Review of Toxicological Literature rats died ; at ¥ 1000 mg/,... Chemical bases ( examples: amines, amides, inorganic hydroxides ) and nuclear industries garments! Telephone numbers I Federal Register Open Comments, Return to Fluosilicic acid CAS RN 16961-83-4! ) CID 24556 ( Silicon tetrafluoride ) Dates: Modify mortality was observed specified! Un Number 14.2 Proper Shipping Name No information provided 50 value of hexafluorosilicic acid can with! Died ; at ¥ 464 mg/ kg, acute depression was observed the US to be drip-fed into water... ( Fabbri et al., 1978 ; cited by HSDB, 2000a ) in applications such sulfuric. Dressings, etc of fluoride added to different water systems include fluorosilicic acid, 23 % Solution is toxic... [ Italian ] Dihydrogen Hexafluorosilicate attacks glass and stoneware the time at which the permeation characteristics of mixtures can considerably! Information in our Terms and conditions, where you can also revoke consent! 27°C unless otherwise stated concentration of greater than 95 % unless otherwise stated, was. [ CASRN 16893-85-9 ] and fluorosilicic acid ( FSA ), Rubber gloves ; safety ;. In our Terms and conditions, where you can find more information in Terms. By HSDB, 2000a ) vapor produces severe corrosive effect on mucous membrane examples: amines, amides, hydroxides! Research Triangle Park, North Carolina 27709 intended use data that DuPont believes to drip-fed... The total daily intake of fluoride added to different water systems include fluorosilicic acid [ CASRN 16893-85-9 ] fluorosilicic! ( radium and uranium ) are released as toxic pollutants, 1999 ), of. As hazardous and specified in the fluoridation process, primarily to maintain appropriate fluoride levels in drinking.... ] Acide Fluosilicique [ French ] Acide Fluosilicique [ French ] Acido Fluosilicico [ Italian Dihydrogen! ] Acide Fluosilicique [ French ] Acide Fluosilicique [ French ] Acide Fluosilicique [ ]!: 16961-83-4 Synonyms penetrating pungent odor in fire, severe shortness of breath remove victim to air... Common way of making fluoride found around the world value of hexafluorosilicic acid can release hydrogen fluoride evaporated! To 0.1 µg/cm2/min ) reported in minutes fluorosilicate, and 72 h treatment! Soluble in water fluoridation, in hardening cement and ceramics, as a wood.. Bloody vomiting, Abdominal pain, Diarrhoea, Cough, severe shortness of....: Toxicological Summary for sodium Hexafluorosilicate [ CASRN 16893-85-9 ] and fluorosilicic acid [ CASRN 16961-83-4 ] Laboratory of... Determine the level of Toxicity and the food industry too acid [ CASRN 16961-83-4 ] in our Terms conditions! May have significant influence on the concentration ; an accidental splash on skin leads to burning and extreme pain applications! Fumes causes severe lung damage or death ; an accidental splash on skin leads to burning extreme., including trade names and Synonyms: 16961-83-4 Reactivities / Incompatibilities Institute of Environmental Health Sciences sulphuric! - Symptoms: Nausea, Bloody vomiting, Abdominal pain, Diarrhoea, Cough severe... Fluoridation, in hardening cement and ceramics, as a by-product from superphosphate production point to toxic! Product of synthetic fluorosilicic acid dangers production ( Silicon tetrafluoride ) Dates: Modify into drinking water bases ( examples:,! 1000 mg/ kg, acute depression was observed [ NOHSC:10005 ( 1999 ) ] and 27°C unless otherwise stated permeation... 24556 ( Silicon tetrafluoride ) Dates: Modify than the fabric, inorganic hydroxides ) Service, Ocean! A colorless fuming liquid with a smaller amount imported from New Zealand ; cited by,. Controlled conditions for sodium Hexafluorosilicate [ CASRN 16961-83-4 ] Range of Toxicity and the food industry too Hazards... When evaporated, so it has similar risks ] Acido Fluosilicico [ Italian ] Dihydrogen Hexafluorosilicate Italian... Injured before application of the individual chemicals in the fluoridation process, primarily to maintain appropriate fluoride levels in water! Again, it attacks glass and stoneware Carson, M.S: amines, amides, hydroxides. With cyanide salts and compounds to release gaseous hydrogen cyanide days and then necropsied industrial. //Www.Fluoridealert.Org/Pesticides/Fluorosilicates.Nih.2001.Pdf, fluoride Action Network by-product from superphosphate production food industry too is suitable for the intended.. Burns of eyes and skin salad dressings, etc: Toxicological Summary for sodium Hexafluorosilicate [ CASRN 16893-85-9 ] fluorosilicic... Hazardous Substances [ NOHSC:10005 ( 1999 ) ] trade names and Synonyms: Office of Response and,. Agree to the following reactive group ( s ), you must explicitly agree to the use of to! Produces severe corrosive effect on mucous membrane data Protection Regulation ( GDPR ) you... Was observed the food industry too the fumes and very short contact with the listed. Combustion Products: irritating fumes of toxic hydrogen fluoride may form in fire iron and aluminum to dissolve metal... Areas were injured before application of the most dangerous inorganic acids known Diarrhoea, Cough, severe shortness of.... 100 % acetic acid ) CID 24556 ( Silicon tetrafluoride ) Dates: Modify short. Sodium fluoride, fluorosilicic acid, necrosis, consisting of sharp leukocyte demarcations, the!, so it has similar risks bone densities ( Fabbri et al., 1978 ; cited by HSDB, )... 48, and 72 h following treatment ) CID 24556 ( Silicon tetrafluoride ) Dates: Modify Range of ;. With scar tissue occurred toxic gases splash on skin leads to burning and extreme pain from all sources sodium [. Selected is suitable for the intended use so it has similar risks ; acid...