Specifications
1.white crystal or granular2.mainly used in fertilizer
3.less absorb moisture
Properties:
White color, easily soluble in water. Aqueous solution appears acid. Insoluble in alcohol, acetone and ammonia. Easily deliquescent in the air.
Application:
1. Mainly use in fertilizer, its advantage is less absorb moisture compared to other fertilizer
2. also use in industry ,pharmaceuticals, textiles,welding industry,dyeing auxilizries of acid dyes,deliming agent of leather,beer making,chemical agent,
3. making compound fertilizer
Storage:
Kept in dry and ventilating place, avoid moisture, water, rain and fire. Avoid shipment with acid, alkali class, edible orange mix of chemicals. Common transportation tools.
Specification:
Index | Premium grade | First grade | Conforming product |
Appearance | White or off-white granular crystal | ||
N content (dry basis)% ≥ | 21.0 | 20.8 | 20.5 |
Water(H2O)content%≤ | 0.2 | 0.3 | 1.0 |
Free acid(H2SO4)%≤ | 0.03 | 0.05 | 0.20 |
(Iron Fe)content%≤ | 0.007 | -- | -- |
Arsenic As)content%≤ | 0.00005 | -- | -- |
Heavy metal(pb)% ≤ | 0.005 | -- | -- |
Insoluble substance in water %≤ | 0.01 | -- | -- |
