| Customization: | Available |
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| CAS No.: | 7778-80-5 |
| Formula: | K2so4 |
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Potassium sulfate is a salt composed of sulfate ions and potassium ions, and is colorless or white crystals, granules or powder in usual condition. Odorless, bitter taste. Hard texture. Chemically inactive. Stable in air. Density 2.66g/cm3. melting point 1069ºC. Aqueous solution is neutral, pH about 7 at room temperature. 1g is soluble in 8.3ml water, 4ml boiling water, 75ml glycerol, insoluble in ethanol.
The main uses are serum protein biochemical test, catalyst for Kjeldahl nitrogen determination, preparation of other potassium salts, fertilizers, pharmaceuticals, preparation of glass, alum and so on.
Role and use
It is the basic raw material for the manufacture of various potassium salts such as potassium carbonate and potassium persulfate. It is used as precipitant in glass industry. Used as intermediate in dyestuff industry. Used as auxiliary agent in spice industry. It is also used as a laxative in the pharmaceutical industry. Potassium sulphate is commonly used as potash fertilizer in agriculture, with a content of 50% potassium oxide, commonly known as "White Gary" in Taiwan. In addition, potassium sulphate is also used in the industry for glass, dyes, spices, pharmaceuticals, etc.
Agricultural applications
Potassium sulphate is a colorless crystal, with low hygroscopicity, not easy to agglomerate, good physical properties, easy to apply, and is a good water-soluble potash fertilizer. Potassium sulphate is also chemically neutral and physiologically acidic fertilizer. Potassium sulphate is a kind of non-chlorine, high-quality efficiency high potash fertilizer, especially in the plantation of chlorine-avoidant crops such as tobacco, grapes, sugar beet, tea tree, potato, flax and various fruit trees, which are indispensable and important fertilizers; it is also the main raw material of high-quality nitrogen, phosphorus and potassium ternary compound fertilizers.
Potassium sulphate compound fertilizer is produced by low temperature conversion of potassium chloride, chemical synthesis and slurry granulation process, with good stability. In addition to the three major nutrients of N, P and K which are essential for plants, it also contains middle and trace elements such as S, Ca, Mg, Zn, Fe and Cu, etc. This kind of fertilizer is suitable for all kinds of cash crops. This kind of fertilizer is suitable for all kinds of economic crops, especially chlorine-avoidant crops. The main components of potassium sulphate fertilizer are MAP (monoammonium phosphate), DAP (diammonium phosphate), ammonium sulphate (mainly obtained by neutralizing sulphuric acid and gas ammonia with low-temperature conversion of surplus sulphuric acid). Potassium sulfate, urea and other small impurities such as calcium sulfate, iron phosphate, aluminum, magnesium and other salts, as well as a small amount of un-reacted potassium chloride.
| Name | Potassium sulfate micronized grade |
| Molecular weight | 174.24 |
| Chemical formula | K2SO4 |
| Appearance | Colorless or white hexagonal or rhombohedral crystal system or granular powder |
| CAS | 7778-80-5 |
| Melting point | 1069ºC |
| Boiling point | 1089ºC |
| Density | 2.66 g/cm3 |
| Flash Point | 1689ºC |
| Solubility | 110 g/L (20ºC), soluble in water, insoluble in ethanol, acetone, carbon disulfide. Potassium chloride and ammonium sulfate can increase its solubility in water, but it is almost insoluble in saturated solution of ammonium sulfate. |
Najin Import and Export (Shandong) Co., Ltd. is a comprehensive, diversified, and comprehensive company with BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether polyols, polyester polyols, and polymer polyols as its main industrial chains. We have a professional sales team that has won recognition and praise from the industry with exquisite technology, sound administrative management, and good teamwork. The product is sold to multiple domestic and foreign enterprises.
We always adhere to the principle of "quality first, customer first, and reputation first", and are committed to providing customers with the best products. We will also continue to build a professional chemical product supply chain with the highest quality service, best products, and maximum efforts.
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