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CAS NUMBER: 16961-83-4
MOLECULAR FORMULA: H2SiF6
MOLECULAR WEIGHT: 144.09
Hydrofluosilicic acid is a colorless liquid that is soluble in water.
Hydrofluosilicic acid is highly corrosive and toxic,attacking glass and stoneware.
Hydrofluosilicic acid is used in water fluoridation, electroplating, and in manufacturing enamels and cement.
Hydrofluorosilicic acid is commonly used as a source of fluoride.
Hydrofluosilicic acid is converted to a variety of useful hexafluorosilicate salts.
Hydrofluosilicic acid is also used as an electrolyte in the Betts electrolytic process for refining lead.
Hydrofluosilicic acid is an important organic reagent for cleaving Si-O bonds of silyl ethers.
Hydrofluosilicic acid is used as wood a preservation agent and also used in surface modification of calcium carbonate.
Hydrofluosilicic acid is a colorless to light brown liquid.
Hydrofluosilicic acid is also manufactured from calcium fluoride or other fluoride-containing products.
Hydrofluorosilic acid is a strong depressant for many silicates during flotation of a number of oxidic minerals.
Hydrofluosilicic acid is used for gangue depression during flotation of tin, columbite and tantalite.
Hydrofluosilicic acid may be produced as a byproduct during the manufacture of phosphate fertilizer.
Hydrofluosilicic acid may also be prepared by treating grounded phosphate rock with sulphuric acid.
Hydrofluorosilicic acid is an inorganic compound.
Although no evidence has been presented for the existence of this species in solution or as a solid, aqueous solutions of hexafluorosilicic acid are well-defined, consisting of salts derived from various protonated forms of water as the cation and hexafluorosilicate as the anion.
These salts and their aqueous solutions are colorless.
Hydrofluorosilicic acid is produced naturally on a large scale in volcanoes.
Hydrofluorosilicic acid is manufactured as a coproduct in the production of phosphate fertilizers.
The resulting hexafluorosilicic acid is almost exclusively consumed as a precursor to aluminum trifluoride and synthetic cryolite, which are used in aluminium processing.
Salts derived from hexafluorosilicic acid are called hexafluorosilicates.
Hydrofluorosilicic acid is produced commercially from fluoride-containing minerals that also contain silicates.
Specifically, apatite and fluorapatite minerals are treated with sulfuric acid to give phosphoric acid, a precursor to fertilizers.
The method is called the wet production process.
As a by-product, approximately 50 kg of Hydrofluorosilicic acid is produced per tonne of HF owing to reactions involving silica-containing mineral impurities.
Some of the hydrogen fluoride (HF) produced during this process in turn reacts with silicon dioxide (SiO2) impurities, which are unavoidable constituents of the mineral feedstock, to give silicon tetrafluoride.
The majority of the Hydrofluorosilicic acid is converted to aluminium fluoride and synthetic cryolite.
These materials are central to the conversion of aluminium ore into aluminium metal.
Hydrofluorosilicic acid is also converted to a variety of useful hexafluorosilicate salts.
Hydrofluorosilicic acid is used in the production of porcelains, the magnesium salt for hardened concretes and as an insecticide, and the barium salts for phosphors.
Hydrofluorosilicic acid and the salts are used as wood preservation agents.
Some rare minerals, encountered either within volcanic or coal-fire fumaroles, are salts of the hexafluorosilicic acid.
Hydrofluorosilicic acid is a challenging chemical because it has properties that pose a danger and specific storage concerns.
With its common use in water treatment, it’s important that you’re aware of the risks of improperly storing this chemical.
Hydrofluorosilicic acid is a chemical often known by other names like fluorosilicic acid and fluosilicic acid.
The acid is a colorless chemical that is created when you take phosphoric rock from the ground and convert it to soluble fertilizer.
In this process, two very toxic fluoride gases hydrogen fluoride and silicon tetrafluoride are released.
The condensation from this hydrogen fluoride is collected, then scrubbed with water.
The liquid collected in these scrubbers is hydrofluorosilicic acid.
Hydrofluorosilicic acid is entered into storage tanks and shipped to water departments throughout the country.
The most commonly discussed application for this chemical is water fluoridation at water treatment plants.
This process helps prevent periodontal problems and is added to drinking water.
Hydrofluorosilicic acid is also commonly added to drinking water, but it can be five times as expensive.
But because hydrofluorosilicic acid can be more dangerous to store, it’s important to have a reliable and safe storage solution.
Other uses of FSA include ceramics (to increase hardness), disinfecting copper and brass vessels, hardening cement, etc., wood preservative and impregnating compounds, electroplating, manufacture of aluminum fluoride, synthetic cryolite and hydrogen fluoride, sterilizing bottling and brewing equipment (1-2% solution) and to etch glass.
Hydrofluorosilicic acid is one of the most commonly used fluoridation methods for treating drinking water.
As a water supplier, you require the chemicals and support to ensure your water supply meets the health and environmental regulations set by your state or municipality.
Hydrofluorosilicic acid and hexafluorosilicates are the most commonly used agents in drinking water fluoridation and it has been claimed that incomplete dissociation of these agents in drinking water may result in human exposure to these chemicals.
The toxicology of these compounds is incompletely investigated.
Recent studies have addressed the equilibrium of the free fluoride ion and fluorosilicate species in aqueous solutions over a wide concentration and pH range.
In the pH-range and at the concentrations of hexafluorosilicates/fluoride relevant for drinking water, hydrolysis of hexafluorosilicates to fluoride was rapid and the release of the fluoride ion was essentially complete.
Residual fluorosilicate intermediates were not observed by sensitive 19F-NMR.
Hydrofluorosilicic acid is used to make refrigerants, herbicides, pharmaceuticals, high-octane gasoline, aluminum, plastics, electrical components, and fluorescent light bulbs.
Sixty percent of the hydrogen fluoride used in manufacturing is for processes to make refrigerants.
Hydrofluorosilicic acid is also used for etching glass and metal.
Hydrofluorosilicic acid is a chemical compound that contains fluorine.
Hydrofluorosilicic acid can exist as a colorless gas or as a fuming liquid, or it can be dissolved in water.
When hydrogen fluoride is dissolved in water, it may be called hydrofluoric acid.
Hydrofluorosilicic acid can be released when other fluoride-containing compounds such as ammonium fluoride are combined with water.
Hydrofluorsilicic acid is a colorless fuming liquid with a penetrating pungent odor.
Hydrofluorosilicic acid is very corrosive to metals and tissue.
Hydrofluorosilicic acid is often referred to as fluorosilicic acid, silicofluoride, and abbreviated to HSA or FSA.
Hydrofluorosilicic acid’s created when you take a phosphoric rock from the ground and convert it to soluble fertilizer.
Hydrofluorosilicic acid’s also used in water fluoridation, hardening of cement, ceramics, and also used as a wood preservative.
Hydrofluorosilicic acid is a colorless liquid and inorganic compound that is rarely found undiluted.
Hydrofluorosilicic acid has a pungent smell and a characteristic sour taste.
Hydrofluorosilicic acid in its concentrated form is toxic and corrosive.
Hydrofluorosilicic acid is mainly produced as a precursor to synthetic cryolite and aluminum trifluoride.
Hydrofluorosilicic acid is also commonly used in water treatment to maintain the fluoride level in water.
The most commonly known application of hydrofluorosilicic acid is water fluoridation at water treatment plants.
Hydrofluorosilicic acid is up to 5 times less expensive than sodium fluoride, an alternative that can also be used to treat drinking water.
As a result, hydrofluorosilicic acid has seen a major surge in demand in recent years.
However, concentrations above 20 percent are more dangerous to store and handle than sodium fluoride and need adequate care and equipment.
The largest quantity of hydrofluorosilicic acid worldwide is converted to cryolite and aluminum fluoride.
These materials are key in the process of converting aluminum ore into aluminum metal.
Hydrofluorosilicic acid is also used as an electrolyte in the Betts electrolytic process for refining lead and as the active compound in some rust removal cleaning products.
Hydrofluorosilicic acid can be the most dangerous chemical at a particular facility.
In the case of evaporation, Hydrofluorosilicic acid releases hydrogen fluoride that is extremely corrosive and will harm the lungs if it is breathed.
In addition, hydrofluorosilicic acid interacts with metals and produces a flammable hydrogen gas.
These dangers, along with potential corrosion or leakage, can cause imminent harm to working personnel and equipment.
Hydrofluorosilicic Acid is a colorless, fuming liquid and is the most commonly used fluoridation methods for treating drinking water.
Hydrofluorosilicic Acid is an inorganic compound.
Hydrofluorosilicic acid is a colorless liquid mostly encountered as diluted aqueous solution, from there, the second chemical notation also proposed.
Hydrofluorosilicic acid has a distinctive sour taste and pungent smell.
Hydrofluorosilicic Acid is used to make most fluorine-containing compounds.
Examples include the commonly used pharmaceutical antidepressant medication fluoxetine and the material PTFE.
Hydrofluorosilicic acid is commonly used to etch glass and silicon wafers.
Hydrofluorosilicic is the name given to the solution of hydrogen fluoride compound in water.
Hydrofluorosilicic acid is especially used in the glass processing industry.
They cannot be stored in glass bottles, as they have a corrosive effect on the glass.
Hydrofluorosilicic acid is in clear liquid form and is defined as HF.
Hydrofluorosilicic acid is a solution of hydrogen fluoride (HF) in water.
Pharmaceuticals such as fluoxetine (Prozac), various materials such as PTFE (Teflon), and almost all fluorine compounds, including elemental fluorine itself, precede it.
Hydrofluorosilicic acid is a very corrosive, colorless solution that can dissolve many materials, especially oxides.
Due to its high reactivity to glass and moderate reactivity to many metals, hydrofluoric acid is often stored in plastic containers (although PTFE is slightly permeable).
Hydrofluorosilicic acid gas is an acute poison that can cause immediate and permanent damage to the lungs and corneas of the eyes.
Hydrofluorosilicic acid is a contact poison that can cause initial painless deep skin burn and subsequent tissue death.
Hydrofluorosilicic is also used to make high-octane gasoline.
In addition, among the usage areas; There are also issues such as purification of aluminum and uranium, removal of rust in laundry products, catalysts in the oil industry.
Because of its ability to dissolve silicate compounds, it is often used during the mineral and rock analysis process to dissolve rock samples.
Hydrofluorosilicic acid is used in glass shaping.
Hydrofluoric acid is used as a starting material or intermediate in industrial chemistry, mineral extraction, refining, glass coating, silicon chip manufacturing and cleaning.
In metalworking, Hydrofluorosilicic acid is used as a pickling agent to remove oxides and other impurities from stainless and carbon steels, as its ability to dissolve steel is limited.
Because of Hydrofluorosilicic acids ability to dissolve (most) oxides and silicates, hydrofluoric acid is useful for dissolving (usually pulverized) rock samples prior to analysis.
Hydrofluorosilicic acid is used in acid macerations to extract organic fossils from silicate rocks.
In addition to being a very corrosive liquid, hydrofluoric acid is a strong contact poison.
Due to the tissue-penetrating ability of hydrofluoric acid, poisoning can easily occur by exposing the skin or eyes, or by inhalation or ingestion.
Hydrofluorosilicic is a solution of hydrogen fluoride (HF) in water.
Hydrofluorosilicic acid solutions are colorless, acidic and highly corrosive.
Hydrofluorosilicic acid is produced from hydrofluoric acid.
Hydrofluorosilicic acid is often used to etch glass and silicon wafers.
Hydrofluorosilicic acid is currently mainly produced by treating the mineral fluorite CaF2 with concentrated sulfuric acid at 265°C.
The main use of hydrofluoric acid is in organofluorine chemistry.
Most high volume inorganic fluoride compounds are prepared from hydrofluoric acid. Chief among these are Na3AlF6, cryolite and AlF3, aluminum trifluoride.
A molten mixture of these solids acts as a high-temperature solvent for metallic aluminum production.
Hydrofluorosilicic acids prepared from hydrofluoric acid include sodium fluoride and uranium hexafluoride.
Hydrofluorosilicic acid is used as a key component of Wright Etch and buffered oxide processing, which is used to clean silicon wafers in the semiconductor industry.
Hydrofluorosilicic acid is also used to shape glass by treating it with silicon dioxide to form gaseous or water-soluble silicon fluorides.
Hydrofluorosilicic acid is used in dentistry to strengthen the adhesion of all ceramic dental restorations to the palate.
Hydrofluorosilicic acid is used in the contents of household rust cleaner products.
Hydrofluorosilicic is used in front circuit boilers producing high pressure steam.
Hydrofluorosilicic is also useful for dissolving rock samples prior to analysis.
Hydrofluorosilicic acid is used in acid macerations to extract organic fossils from silicate rocks.
Hydrofluorosilicic is an aqueous inorganic acid solution commonly used in research and industry for its ability to etch silicon compounds.
Hydrofluorosilicic acid is an essential tool for semiconductor and electronic fabrication, mineral processing and glass etching.
In addition to Hydrofluorosilicic acids useful properties, hydrofluoric acid also poses severe health risks upon exposure.
Best management practices must be reviewed and continually employed while working with this material.
Hydroflurosilicic acid, also known as fluorosilicic acid and hexaflurosilicic acid, is a clear, colorless liquid that is used in a variety of industrial applications.
Due to Hydrofluorosilicic acids ease of use over competing technologies, hydroflurosilic acid is commonly used in water fluoridation applications.
Hydroflurosilicic acid is also used for hardening masonry and ceramics, as a metal surface treatment and cleaner, pH adjustment in industrial textile processing or laundries, and as an intermediate in the manufacturing of chemicals.
Hydrofluorosilicic acid is a kind of inorganic acid.
Hydrofluorosilicic acid is majorly used for the fluoridation of water in United State to minimize the incidence of dental caries and dental fluorosis.
Hydrofluorosilicic acid is majorly used for the manufacturing of aluminum fluoride and cryolite as well as many kinds of hexafluorosilicate salts.
Hydrofluorosilicic acid can also be used as an electrolyte in the Betts electrolytic process for refining lead.
Hydrofluorosilicic acid is also a specialized reagent in organic synthesis for cleaving Si–O bonds of silyl ethers.
USES:
-Hardener and water repellent to improve the hardness and strength of concrete
-Fluorine weathering treatment on the surface of silica building.Ceramic manufacturing
-Control insect on fabric insecticide.
APPLICATION:
-Water Fluoridation
-Disinfecting Copper & Brass Vessels
-Sterilizing Bottling & Brewing
-Cement
-Ceramics
-Wood Preservative
PROPERTIES:
-concentration: 20-25 wt. % in H2O
-density: 1.22 g/mL at 25 °C
-SMILES string: F[H].F[H].F[Si](F)(F)F
-InChI: 1S/F4Si.2FH/c1-5(2,3)4;;/h;2*1H
-InChI key: ZEFWRWWINDLIIV-UHFFFAOYSA-N
STORAGE:
- Keep container tightly closed.
- Keep in a cool, well-ventilated place.
- Keep away from heat.
- Keep away from Incompatible products.
- Keep in a bunded area.
- Information about special precautions needed for bulk handling is available on request.
HANDLING:
- Used in closed system
- Handle small quantities under a lab hood.
- Use only in well-ventilated areas.
- Use only equipment and materials which are compatible with the product.
- Keep away from Incompatible products.
- Preferably transfer by pump or gravity.
- For further information, please contact:
- Manufacturer, importer, supplier
SYNONYM:
tetrafluorosilane;dihydrofluoride
Fluorosilicic acid solution
H2SiF6
AKOS015903679
Fluorosilicic acid, 22-25% in water
Fluosilicic acid, purum, 33.5-35%
Fluorosilicic acid solution, AR,30.0-32.0%
Fluorosilicic acid solution, GR,30.0-32.0%
Fluorosilicic acid solution, 20-25 wt. % in H2O
J-010569
