Potassium Sulfate

Product Category: Other Chemicals

CAS No.: 7778-80-5
Formula: K₂SO₄
Molecular Weight: 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.
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 cool, draughty and dry place at room temperature.
Specifications:

Potassium Sulfate	Reagent grade A.R.	Reagent grade C.P.	Lucosamine special-purpose grade	Lucosamine low sodium grade
Item	Spec.	Spec.	Spec.	Spec.
Assay（K2SO4）%	≥99.0	≥98.5	≥99.0	≥99.0
Water insoluble%	≤0.005	≤0.01	≤0.005	≤0.005
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
Ca%	≤0.01	≤0.02	≤0.01	≤0.01
Heav metal(as Pb) %	≤0.0005	≤0.001	≤0.0005	≤0.0005
Fe%	≤0.0002	≤0.0005	≤0.0002	≤0.0002
Na%	≤0.03	≤0.1	-	≤0.005
Fineness(40-80 meshes sieve)	-	-	Pass	Pass
Potassium Sulfate	War industry grade	Gunpowder grade	Feed grade	Technical grade
Item	Spec.	Spec.	Spec.	Spec.
Assay（K2SO4）%	≥99.0	≥99.0	≥98.5	≥98.5
Water insoluble%	≤0.01	≤0.02	-	-
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	-	-
Total nitrogen(N) %	-	-	-	-
Ca%	≤0.02	≤0.03	-	-
Heav metal(as Pb) %	≤0.001	≤0.001	≤0.002	≤0.002
Fe%	≤0.0005	≤0.001	-	-
Na%	≤0.1	-	-	-
Mg%	≤0.005	≤0.01	-	-
Fineness(120 meshes sieve)	-	≤5	40 meshes sieving rate≥95	-

Certifications: ISO
Brand Name: SELLWELL
Price Terms: EX-Work,FOB,CIF
Payment Terms: T/T, Western-Union, MoneyGram, L/C
Minimum Order: 100KG
Delivery Time: 7 days