Sodium fluorosilicate
CAS No. :16893-85-9
UN No.:2674
HS No.: 2826901000
Molecular weight ï¼188.06
ãPropertiesã: Sodium fluorosilicate is odorless and tasteless crystalline or powder. molecular formula Na2SiF6ï¼ Stable at normal temperature and pressure; It is hard to dissolve in water and acid, won’t burn or explode being heated.
ãQuality standardã:qualified with the standard ãHG3252-2000ã.
Item
|
Standard values(%)
|
Test result
|
Appearance
|
White powder
|
White powder
|
Sodium fluorosilicate (Na2SiF6)
|
≥98.5
|
99.0
|
Loss of weight on drying at 105â
|
ï¼0.30
|
0.30
|
Free acid (as HCL)
|
≤0.1
|
0.047
|
Chlorides(CL)
|
≤0.15
|
0.11
|
Sulfate (SO4)
|
≤0.25
|
0.23
|
Fe
|
≤0.02
|
0.02
|
H2O
|
≤0.4
|
0.18
|
Fineness
|
≥90
|
99
|
ãApplicationãMilky agent and fusing agent for glass and enamel; preserving agent for wood; agricultural insecticide ; hygroscopic agent for acid-resisting cement; coagulation accelerator in natural emulsion products. Additive in electroplating zinc , nickel and iron in three floors; stuffing agent in plastics; pharmacy, fluorating treatment for drinking water and for man-made crystals and Sodium Fluoride.
ãPackingã: polyethylene weaving inner lined with plastic bag. Net weight is 25kgï¼exported packingï¼.
ãstorage and transportation ã: Inorganic toxic substance, and should be stored in dry and adequately ventilated warehouse, and may not be co-stored or co-transported with sulfuric acid and edible food.