Product name ： Potassium Sulfate
Product Category：Health care products and pharmaceutical intermediates/Potassium salts;
CAS No.： 7778-80-5
Formula:K₂SO₄
MW:174.25
Characters:colorless crystal or white crystalline powder, it is heavy and hard, bitter and salty, slightly soluble in water and glycerol, insoluble in ethanol.
Specifications:

Potassium Sulfate	A.R.	C.P.	Glucosamine  grade	Glucosamine with low sodium
Assay（K2SO4）%	≥99.0	≥98.5	≥99.0	≥99.0
Water Insoluble	≤0.005	≤0.01	≤0.005	≤0.005
Arsenic (As)%	≤0.0001	≤0.0005	≤0.0002	≤0.0001
PH(50g/L,25℃)	5.0~8.0	5.0~8.0	5.0~8.0	5.0~8.0
Chlorides(Cl), %	≤0.0005	≤0.001	≤0.02	≤0.005
Total nitrogen(N) %	≤0.0005	≤0.001	≤0.0005	≤0.0005
Calcium (Ca) %	≤0.01	≤0.02	≤0.01	≤0.01
Heavy metal(as Pb) %	≤0.0005	≤0.001	≤0.0005	≤0.0005
Iron (Fe)%	≤0.0002	≤0.0005	≤0.0002	≤0.0002
Sodium (Na)%	≤0.03	≤0.1	——	≤0.005
Fineness(40-80 meshes sieve)	——	——	Pass	Pass
Potassium Sulfate	Military grade	Gunpowder grade	Feed grade	Technical grade
Assay(K2SO4)%	≥99.0	≥99.0	≥98.5	≥98.5
Water Insoluble%	≤0.01	≤0.02	——	——
Arsenic (As)%	≤0.0002	——	≤0.001	≤0.001
PH(50g/L,25℃)	6.0~8.0	6.0~8.0	——	——
Chlorides(Cl), %	≤0.001	≤0.002	——	——
Nitrogen(N)%	——	——	——	——
Calcium (Ca)%	≤0.02	≤0.03	——	——
Heavy metal(as Pb) %	≤0.001	≤0.001	≤0.002	≤0.002
Iron (Fe)%	≤0.0005	≤0.001	——	——
Sodium (Na)%	≤0.1	——	——	——
Magnesium (Mg)%	≤0.005	≤0.01	——	——
Fineness(120 meshes sieve)	——	≤5	40 meshes sieving rate≥95	——

Product Usage: Used as medicine (laxative), fertilizer(potash content: 50 %); also used in the making of alum, glass and potassium carbonate etc.
Packaging:In 25Kg/woven bag, lined with double-layer plastic bag
Storage Precautions:Stored in a cool, ventilated and dry place at room temperature.
MSDS: Download