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English name: Potassium Sulphate
Alias: Arcanum duplicatum; arcanumduplicatum; dipotassiumsulfate; Glazier's salt; kaliumsulphuricum; Potassium sulfate, alpha; potassiumsulfate(2:1); Potassium Sulfate
Molecular formula: K2SO4
Molecular weight: 174.24
HS CODE: 31043000
Properties: Colorless or white hexagonal or orthorhombic crystal or granular powder. Relative density is 2.662, inversion point is 588 ℃, melting point is 1069 ℃, boiling point is 1689 ℃. Soluble in water (12G／100ML water at 25 ℃, 24.1G／100ML water at 100 ℃), insoluble in alcohol, acetone and carbon disulfide.
Uses: This product can be used in producing antismoke agent in military industry, as chemical fertilizer in agricultural industry, as raw material for producing potassium salt, as intermediate in dye industry, as laxative in pharmaceutical industry, as auxiliary in perfume industry, and as general additive in food industry.
CAS NO.: 7778-80-5
Specification: Potassium Sulphate Ind.Grade
|
Inspection Item |
Unit Unit |
Fine Grade |
Feed Grade |
Industrial First Grade |
Military Grade |
|
Potassium sulfate (K2SO4) |
%≥ |
99.0 |
98.5 |
98.5 |
99.0 |
|
Insoluble matter in water |
%≤ |
0.3 |
---- |
0.5 |
0.1 |
|
Chloride(as Cl-) |
%≤ |
0.03 |
---- |
0.05 |
0.003 |
|
Calcium |
%≤ |
0.03 |
0.03 |
0.03 |
0.01 |
|
Heavy metal(as Pb) |
%≤ |
0.001 |
0.002 |
0.002 |
0.001 |
|
Iron |
%≤ |
0.005 |
0.005 |
0.02 |
0.001 |
|
PH(50g/L,25℃) |
- |
6.0~8.0 |
6.0~8.0 |
6.0~8.0 |
6.0~8.0 |
|
Size(120 mesh) |
|
1 120mesh |
120mesh |
120mesh |
120mesh |
|
Appearance |
White crystal without any impurity visible to the naked eye |
||||
Specification: Potassium Sulphate Agr.Grade
|
Inspection Item |
Unit |
Powder |
Granular |
|
Potassium oxide/Potassium Oxide |
% ≧ |
50.0 |
50 |
|
Moisture |
% ≦ |
1.0 |
1.0 |
|
Chlorides |
% ≦ |
1.5 |
1.5 |
|
Free Acid |
% ≦ |
1.5 |
1.5 |
|
Size |
|
120 mesh |
2-4mm |
Packing: woven bag lined with plastic bag, net weight is 9.5/25/40/50KG.
Storage and transportation: keep in dry and well-ventilated warehouse. to protect from damp and rain.
