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Name:21% fertilizer ammonium sulphate crystalline
Appearance: Granule
Ammonium sulfate (IUPAC-recommended spelling; also ammonium sulphate in British English), (NH4)2SO4, is an inorganic salt with a number of commercial uses. The most common use is as a soil fertilizer. It contains 21% nitrogen as ammonium cations, and 24% sulfur as sulfate anions.
Items | Standard |
Appearance | White crystal |
N | 21.0%min |
Water | 0.2%max |
Free acid | 0.03%max |
Fe | 0.007%max |
As | 0.00005%max |
Heavy metal(Pb) | 0.005%max |
Water insolubles | 0.01%max |
Molecular weight | 132.13 |
Density | 1.769g/cm3 |
Decomposition temperature | 235 degrees centigrade |
Color | Pure chemicals of ammonium sulfate are colorless rhombic crystals. Industrial products are white color, light grey or light yellow or yellowish-brown color crystal because of different impurities bearing. |
Physicalproperty | Easy to dissolve in water and can not dissolve in alcohol, acetone, ammonia; |









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