Sodium Silicate
Basic information:
CAS NO.1344-09-8
Chemical formula:Na2SiO3
Molecular weight:122.06
Character:Colorless orthogonal biconical crystals or white to off-white Lumps or powders.
Density:2.614
Melting point:1089℃
Solubleness(mg/ml):Soluble in water,soluble in dilute sodium hydroxide Solution,insoluble in ethanol and acids.
Techical Index(Mass fraction/%)
|
Items |
|
Index |
|
|
|
AR |
CP |
|
|
Assay (Na2O) |
|
19.3-22.8% |
18.7~23.4 |
|
Ratio between Na2O and SiO2 |
|
1.03±0.03 |
1.03±0.06 |
|
Water dissolution experiment |
|
qualified |
qualified |
|
Carbonate |
|
qualified |
qualified |
|
Chloride |
|
≤0.01% |
≤0.02% |
|
Sulphate |
|
≤0.01% |
≤0.02% |
|
Heavy metal |
|
≤0.001% |
≤0.002% |
|
Ammonia sediment |
|
≤0.05% |
≤0.1% |
Uses:
Used as analytical reagent, fabric fireproofing agent, adhesive, hardener, weight increasing agent, filling agent.It is also used in mineral flotation and petroleum refining.
Package/Capacity of container/Storage:
Packing:in net weight of 25kg plastic woven bag with plastic, kraft paper Bag or paper cartrige.
Store dry and sealed.