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Potassium Sulfate
Molecular formula: K2SO4
Molecular weight: 174.26
CAS NO: 7778-80-5
[Character]: Colorless or white crystal or powder. It tastes bitter and salty. The density of 2.662. Melting point 1069℃, boiling point 1689℃. Soluble in water, insoluble in ethanol, acetone and carbon disulfide.
[To use]: Used as analytical reagents, such as reference reagents, kai-type nitrogen determination catalysts. It is also used in the preparation of potassium salts and the pharmaceutical industry. Used as a medicine (laxative). It is also used as biofertilizer, and is used to make alum, glass and potash.
[Standard]: The impurity content is calculated by the highest content
Specification Name of index | Analytically pure-AR |
Content (K2SO4) | ≥99.0 |
PH (50g/L,25℃) | 5.0~8.0 |
Clarity test | qualified |
Water insolubles | ≤0.005 |
Chloride(Cl) | ≤0.0005 |
Total nitrogen(N) | ≤0.0005 |
Sodium (Na) | ≤0.03 |
Calcium(Ca) | ≤0.01 |
Ferrum(Fe) | ≤0.0002 |
Arsenic(As) | ≤0.0001 |
Heavy metal (Pb) | ≤0.0005 |
[Packing]: Plastic inside and outside woven, kraft paper bag or cardboard bucket, net weight 25kg.
Manufacturing
