Hexafluorosilicic acid(Fluosilicic Acid) is the inorganic compound with
the formula H2SiF6 synonyms are fluorosilicic acid, hydro fluorosilic
acid, silicofluoride and silicofluoric acid.
Hexafluorosilicic acid refers to an equilibrium mixture with hexa
fluorosilicate anion (SiF62-) in an aqueous solution or other solvents
that contain strong proton donorsat low pH (acids described similarly
include chloroplatinic acid, fluoroboric acid, and hexa fluoro
The HF in turn
reacts with silicate minerals, which are an unavoidable constituent of
the mineral feedstock, to give silicon tetra fluoride thus formed, the
silicon tetra fluoride reacts further with HF.
process can be described as: SiO2 + 6 HF = H2SiF6 + 2 H2O.
Hexafluorosilicic acid can also be produced by treating silicon tetra
fluoride with hydrofluoric acid.
acid (Hydrofluorosilicic acid) is manufactured by two different
processes, resulting in products with different characteristics.
production of the acid is as a byproduct of phosphate fertilizer
amount is produced from HF and silica resulting in a purer product at
slightly higher strength it is used in sterilization of equipment,
electroplating, tanning of animal hides, ceramics and glass: glass
etching, commercial laundry: as a neutralizer for alkalis,hardening of
cement ,oil well acidizing ,rust and stain removal for textiles ,wood
preservative ,water fluoridation.
acid (FSA) is often recovered from phosphoric acid plants.
is not simply the addition of "fluoride to drinking water."
even be a problem, with people who have sensitive skin.
acid concentrates in pools and spas over time while water evaporates.
reaction is employed, not for our health, but to slow down the corrosive
action of fluosilicic acid on the water district's plumbing metalvalves.
involves adding unnatural fluosilicic acid,which contains the fluoride
ion inside the fluosilicic acid dosing system (duty/standby)is designed
to provide automatic flow-rate paced dosing
of the hexa fluorosilicic acid is converted to aluminium fluoride and
materials are central to the conversion of aluminium ore into aluminium
H2SiF6 is a
specialized reagent in organic synthesis for cleaving si-o bonds of
Hexafluorosilicic acid and the salts are used as wood preservation
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