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Sodium hexafluorosilicate (Na2SiF6)-Crystalline

Sodium hexafluorosilicate (Na2SiF6)-Crystalline

CAS: 16893-85-9
Molecular Formula: Na2SiF6
Purity: 99+%
Products Code: TR09111400CY
Specification Model: -100 Mesh.etc
Hazardous Class: Class 6.1
EINECS No.: 240-934-8
UN No.: UN2674
Package Class: PG III
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Sodium hexafluorosilicate (Na2SiF6)-Crystalline introduce:

Characteristic

 

Sodium hexafluorosilicate occurs naturally as the rare mineral malladrite found within some volcanic fumaroles.Moisture sensitive. Incompatible with oxidizing agents and water.




Chemical formula:Na2[SiF6]

Molar mass:188 g/mol

Appearance:white granular powder

Odor:odorless

Density:2.7 g/cm3

Solubility in water:0.64 g/100 mL (20 °C);1.27 g/100 mL (50 °C);2.45 g/100 mL (100 °C)

Solubility:insoluble in alcohol

Refractive index (nD):1.312

Crystal structure:trigonal

 


Application

 

Sodium hexafluorosilicate is used as a additive for water fluoridation, opal glass raw material and in ore refining. It is also used in the preparation of other fluoride chemicals like sodium fluoride, sodium hexafluoroaluminate, potassium hexafluorosilicate, ammonium fluoride and calcium fluoride. It finds application as flotator, component for wet etching, wood preservative, brazing flux and welding compound. It is an active component of concrete.
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