Ammonium sulfate
CAS Registry Number: 7783-20-2 | Formula: (NH₄)₂SO₄
Applications
Molecular formula: (NH₄)₂SO₄
CAS number: 7783-20-2
Appearance: Pure form is colorless rhombic crystals or white granules. The industrial product may have a slight yellowish tint.
Properties: Soluble in water. The pH of 0.1 mol/L aqueous solution is approximately 5.5, showing acidity. Insoluble in ethanol and acetone. The solubility in water increases with temperature (e.g., 70.6g/100ml at 0℃, 103.8g/100ml at 100℃).
Uses: In industry, it is used as a chemical raw material to manufacture ammonium chloride, ammonium alum, refractory materials, etc.; as an industrial additive to increase conductivity in electroplating solutions; as an acid dye dyeing aid and leather desilvering agent; used in beer brewing, chemical reagents and battery production. In agriculture, it can be used as a nitrogen fertilizer. Packaging: Inner liner is a transparent plastic bag, outer covering is a plastic woven bag. Each bag weighs 25 kilograms or 50 kilograms, or 1000 kilograms in a woven bag.
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INDEX |
STANDARD |
RESULT |
|
AMMONIUM SULPHATE % ≥ |
99.0-99.5 |
99.46 |
|
Nitrogen(N) % ≥ |
20.5-21 |
21.01 |
|
TOTAL SULFUR % ≥ |
23.5 |
24.03 |
|
MOISTURE % ≤ |
0.5 |
0.25 |
|
INSOLUBLES % ≤ |
0.02 |
0.02 |
|
Fe % ≤ |
0.002 |
0.001 |
|
COLOR |
White or off-white |
|