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Silicon dioxide
Chemical name:
Silicon dioxide       Alias:Silica Gel
Molecular formula:
SiO2
Property:
silica dioxide  ( SiO2) is white powdery, melting point: about 1710℃
Use:
silica dioxide is a kind of excellent  additive. Mainly used in for toothpaste abrasive keep the paste clinging to toothbrush not easy to fall down, lessen teeth wear and tear,  thickener  additive, felt resist additive and chemical stability etc. 
Packing: 
External packing (25kg): Pressed film knitted bag with moisture proof liner
Internal packing : Double layer high-pressure polyethylene.
 
ITEM
HG2791—1996
Ⅰ   %
Ⅱ    %
Ⅲ    %
Silica dioxide( after ignition)
99.3
99.0
96.0
Loss on drying
2.5
70
5
Loss on ignition
2.0
8.5
8.5
Heavy metal (as Pb)
0.003
0.003
0.003
Pb
0.001
0.001
0.001
As
0.0003
0.0003
0.0003
Sulfate( Na2 SO4
1
4
 

 

 

   
     
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