Sodium fluorosilicate is a
compound with the chemical formula Na
2 iF6
Natural occurrence
Sodium hexafluorosilicate occurs naturally as the rare mineral malladrite found within some volcanic fumaroles.
Manufacturing
Sodium fluorosilicate is made by
neutralizing fluorosilicic acid with
sodium chloride
Sodium chloride , commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g ...
or
sodium sulfate
Sodium sulfate (also known as sodium sulphate or sulfate of soda) is the inorganic compound with formula Na2SO4 as well as several related hydrates. All forms are white solids that are highly soluble in water. With an annual production of 6 milli ...
.
:H
2 iF6+ 2 NaCl → Na
2 iF6+ 2 HCl
Possible application
It is used in some countries as additives for water fluoridation, opal glass raw material, ore refining, or other fluoride chemical (like sodium fluoride, magnesium silicofluoride, cryolite, aluminum fluoride) production.
See also
*
Fluorosilicic acid
*
Ammonium fluorosilicate
Ammonium fluorosilicate (also known as ammonium hexafluorosilicate, ammonium fluosilicate or ammonium silicofluoride) has the formula (NH4)2SiF6. It is a toxic chemical, like all salts of fluorosilicic acid.Wiberg, E., Wiberg, N., and Holleman, A. ...
References
{{silicon compounds
Sodium compounds
Hexafluorosilicates