 Property:
Potassium Sulphate is colorless or white hexagonal or rhombic crystal or granular powder. The relative density is 2.662. The inversion point is at 588°C , the melting point is at 1069°C and the boiling point is at 1689°C .It is soluble in water(12g/100ml water at 25°C ;24.1g/100ml water at 100°C) and insoluble in alcohol, acetone and carbon bisulfide. It tastes bitter and salty.
CAS RN:7778-80-5
|
Specification: Fine Grade
Inspection ltem |
Unit |
Fine Grade |
Feed Grade |
First Grade |
Assay（K2SO4） |
% ≧ |
99.0 |
98.5 |
98.5 |
Insoluble matter in water |
% ≦ |
0.3 |
—— |
0.5 |
Chloride(as Cl -) |
% ≦ |
0.03 |
—— |
0.05 |
Calcium |
% ≦ |
0.03 |
0.03 |
0.03 |
Heavy Metal (as Pb) |
% ≦ |
0.001 |
0.002 |
0.002 |
Iron |
% ≦ |
0.005 |
0.005 |
0.02 |
Magnesium |
% ≦ |
0.01 |
—— |
—— |
PH(50g/L,25℃) |
- |
6.0~8.0 |
6.0~8.0 |
6.0~8.0 |
Size（120 mesh） |
|
120 mesh |
120 mesh |
120 mesh |
Appearance |
white crystal without any impurity visible to the naked eye |
|
Packing: Plastic woven bag inner with plastic bag in 40kg net. |
Handling and Storage:Store in ventilated and dry house with the package sealed away from moisture. Prevent the material from rain in case to be dissolved and lost during transportation |
Applications :  Potassium Sulphate is mainly used as smoke suppressor for bomb in military industry. It is a chemical fertilizer applied in agriculture and a constituent of potassium salt. It is also used as a intermediate in dyeing, a clarifying agent in glass industry, a release inhibitor in medicine, an accessory ingredient in aromatics industry and all-purpose additives in food industry. It is also used in biochemical inspection of serum protein. |
