Product: Silicic Acid
CAS NO: 1343-98-2
Molecular formula: H2SiO3
Properties:
Colorless, transparent glass-like irregular grains. Insoluble in acids(except for hydrofluoric acid), soluble in caustic alkali solution. Compared with silica gel, it contains more hydroxyls and is a kind of high-purity reagent silica gel.
Application:
Mainly used for chemical reagents, fusion agent for processing tungsten filaments.
Specification:
|
Items
|
Grade 1
|
Grade 2
|
|
SiO2 Content (%)
|
99.3 min
|
99.3 min
|
|
Loss on Ignition (%)
|
20-28
|
20-28
|
|
Non-volatile substance (%)
|
0.20 max.
|
0.40 max.
|
|
Chloride(Cl) (%)
|
0.005 max.
|
0.005 max.
|
|
Sulfate(SO4) (%)
|
0.02 max.
|
0.02 max.
|
|
Heavy metal(Pb) (%)
|
0.005 max.
|
0.01 max.
|
|
Iron(Fe) (%)
|
0.005 max.
|
0.005 max.
|
|
