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1．Chemical Name: Potassium sulfate
2．Molecular Formula: K2SO4
3．Molecular Weight: 174.26
4．CAS: 7778-80-5
5．Character: It is colorless or white crystalline powder. It has bitter taste. Relative density is 2.662. Melting point is 1069℃. Easily soluble in water, insoluble in ethanol and acetone, pH is 5.5-8.5 in 5% aqueous solution.
6．Usage: It is used as fertilizer additives, seasoning and salt substitute.used as cleaning agent in glass industry. Used as bulk laxatives in medical industry.
7．Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8．Storage and Transport: It should be stored in a dry and ventilative warehouse; kept away form water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.
质量指标 | Specification | GB/T 20406-2017 |
含量（K2SO4）w/% ≥ | Content（K2SO4） | 52.0 |
水(H2O)，w% ≤ | Moisture | 1.0 |
硫(S)，w% ≥ | sulfur | 17.0 |
氯(Cl)，w% ≤ | chlorine | 1.5 |
游离酸(H2SO4)，w% ≤ | Free acid | 1.0 |