Anhydrous sodium sulfate
- CAS number
- 7757-82-6
- Molecular weight
- 142.04
- Molecular formula / chemical symbol
- Na2O4S
Description
White granular powder, odorless, bitter salty taste, odorless, non-toxic. Easy three molecules of water absorption in the humid air. Can be dissolved in water and glycerin, insoluble in alcohol. 3.6 dissolved parts of water. Solubility (1:2) at 33 ℃, high temperature and then reducing the solubility, 100 ℃ when dissolved in 2.4 parts of water.
USES
Filler
is mainly used as synthetic detergents. Cooking agent in the paper industry for
the manufacture of kraft pulp. The glass industry in lieu of soda ash. The
chemical industry as a raw material for manufacture of sodium sulfide, sodium
silicate and other chemical products. The textile industry for deploying the
vinylon spinning coagulation bath. The pharmaceutical industry used as
laxatives. Is also used for non-ferrous metallurgy, leather, and other aspects.
Keywords:Surface treatment chemicals
Report
|
TEST ITEMS |
TEST RESULT |
|
|
|
(AR) |
(CP) |
|
Na2SO4 |
≥ 99.0 |
98.0 |
|
pH(50g/L Solution，25℃) |
5.0-8.0 |
5.0-8.0 |
|
Clarity Test |
Qualified |
Qualified |
|
Water insoluble matter |
≤0.005 |
0.02 |
|
Loss on ignition |
≤0.2 |
0.5 |
|
Chloride (Cl) |
≤ 0.001 |
0.005 |
|
Total nitrogen amount (N) |
≤ 0.0005 |
0.001 |
|
Phosphate (PO4) |
≤ 0.001 |
0.002 |
|
(K) |
≤ 0.01 |
-- |
|
(Ca) |
≤ 0.002 |
0.005 |
|
(Fe) |
≤0.0005 |
0.0015 |
|
Heavy metals (as Pb) |
≤ 0.0005 |
0.002 |