|Appearance:||White Free-flowing Powder||Odor:||Odorless|
|UN Number:||2674||CAS NO:||16893-85-9|
|Class Of Risk:||6.1||Density:||2.68|
Coagulator sodium silicate fluoride powder used as wood preservative UN NO 2674
Origin :Sodium fluorosilicate is made by neutralizing fluorosilicic acid with
sodium chloride or sodium sulfate.
Appearance : Fine, white, odorless, powdered solid
production method: Sodium fluorosilicate is made by neutralizing fluorosilicic acid
with sodium chloride or sodium sulfate.
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.
Features: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!
|Loss of Weight on drying at 105°C||≤0.40%|
|Insoluble in Water||≤0.50%|
It appears as colorless hexagonal crystals. It is odorless and tasteless. It has
hygroscopicity. It can be dissolved in a solvent such as ethyl ether but insoluble in
alcohol with its solubility in acid is being greater than in the water.
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
1. As coagulator
2. Wood preservatives
50kg /plastic bag ,or customized
Contact Person: anny