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Physical and Chemical Properties: white crystal granule, solube in water. It will decompose at 280
and produce ammonia and sulfuric acid.
Main Ingredient: amonium sulfate.
Molecular Formula: (NH4)2SO4
Molecular Weight: 132.13
Up to GB535-1995
Item Excellent Grade 1 Grade 2
N (on dry base) , % no less than 21 21 20.8
H2O, % no more than 0.2 0.3 1
Free acid (H2SO4) , % no more than 0.03 0.05 0.2
Fe, % no more than 0.007
As, % no more than 0.00005
Heavy metal (Pb) , % no more than 0.005
Insoluble matter in water, % no more than 0.01
Uses: mainly used as the raw material for fertilizer, chemicals, dyeing, medicine, leather, etc.
Packing: woven bag lined with plastic one, 50kg