CAS 16893 85 9 Sodium Silicate Fluoride 6.1 Risk Class 2.68 Relative Density

 
Sodium Silicofluoride powder Na2SiF6 CAS NO 16893-85-9 can use as additives for water fluoridation and opal glass

 
 ►Description 

 
 
Sodium Fluorosilicate is a fine, white, odorless, powdered solid. Toxic by ingestion,
 
inhalation and skin absorption.
 
 1. Appearance :
 
 
White, hexagonal crystals.
 
 
2. production method:
 
 
Sodium fluorosilicate is made by neutralizing fluorosilicic acid with sodium chloride
 
or sodium sulfate.
 
 
3. Usage :
 
Additives for water fluoridation, ore refining, or other fluoride chemical (like sodium
 
fluoride, magnesium silicofluoride, cryolite, aluminum fluoride) production.in the
 
field of laundry souring, manufacturing enamels, manufacturing coated papers,
 
wood preservative , foam production, opal glass, ore flotation and water
 
fluoridation.
 
 
4. Features:
 
Sodium fluorosilicate appears as white crystal, crystalline powder or colorless
 
hexagonal crystals.
 
It is odorless and tasteless.
 
Its relative density is 2.68;
 
It has moisture absorption capability.
 
It can be dissolved in a solvent such as ethyl ether but insoluble in alcohol.
 
The solubility in acid is greater than that in water.
 
It can be decomposed in alkaline solution, generating sodium fluoride and silica.
 
After searing (300 ℃), it is decomposed into sodium fluoride and silicon
 
tetrafluoride. It is poisonous!
►Specification 
 

 
 ►Storage characteristics

 Treasury: ventilation, low-temperature and drying; store it separately from food and
 
acid.

►eference quality standards
105 ℃ Loss of weight upon drying% 0.17%
 
Sodium fluorosilicate (based on dry mass) 99.50
 
Free acid (calculated based on HCL) 0.0075
 
Water insoluble matter 0.12%
 
Heavy metals (Pb) content% <0.02
 ►Application 

 1. Additives for water fluoridation
 
2. Opal glass 
►Packing 

 
50kg /plastic bag ,or customized 
 
►MOQ 

 
 1-20 ton