zhongchang Ammonium Sulphate National standard ammonium sulphate, white ammonium sulphate

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Basic Info

Place of Origin:	Hebei, China (Mainland)

Product Description

21.0% white Crystal Ammonium Sulphate

Product Description Specifications: Nitrogen:20.8%min Moisture:0.7max

Item	Supreme grade	First grade	Qualified grade
Appearance	no visible mechanical impurity	no visible mechanical impurity	no visible mechanical impurity
N content(dry basis),% ≥	21.0	20.8	20.5
Water content(H₂O),% ≤	0.5	0.8	1.0
Free acid(H₂SO₄)content,% ≤	0.03	0.05	0.20
Fe content, % ≤	0.007	-	-
As content,% ≤	0.00005	-	-
Heavy metal(Pb)content,% ≤	0.005	-	-
Water insolubles,% ≤	0.01	-	-