产品说明
一般描述
Potassium sulfate (K2SO4)is a colorless compound having rhombic or hexagonal crystals. It readily forms double salts with the sulfate of trivalent metals, which are known as Alums. It also forms double salts with calcium, magnesium and sodium sulfates. It is widely employed as a fertilizer. K2SO4 can be extracted from various complex salts in nature, such as Kainite, langbeinite and carpathein mineral ores. It can be synthesized by reacting KCl and sulfuric acid, via Mannheim process.
Potassium sulfate is a water-soluble inorganic salt that is commonly used in fertilizers. It can be prepared by reacting phosphogypsum and potassium chloride. K2SO4 can form needle-like mullite particles on heating with aluminum sulfate and silicon dioxide. Its application to the soil has shown to minimize bronzing of rice plants.
应用
Potassium sulfate may be used in the preparation of needlelike mullite particles. It may be used as a buffer for minimizing the adsorption of proteins on fused-silica capillaries in capillary zone electrophoresis.
Potassium sulfate may be used as a sulfonating agent in the preparation of 4′-dibenzo-18-crown-6-sulfonic acid via sulfonation of dibenzo-18-crown-6.
包装
500 g in poly bottle
2.5 kg in poly bottle
基本信息
| 线性分子式 | K2SO4 |
| 分子量 | 174.26 |
| EC 号 | 231-915-5 |
| MDL编号 | MFCD00011388 |
| PubChem化学物质编号 | 329752311 |
| NACRES | NB.24 |
产品性质
| 质量水平 | 200 |
| 等级 | ACS reagent |
| 测定 | ≥99.0% |
| 形式 | powder |
| 杂质 | ≤0.01% insolubles ≤5 ppm N compounds |
| pH值(酸碱度) | 5.5-5.8 (25 ℃, 5%) |
| 痕量阴离子 | chloride (Cl-): ≤0.001% |
| 痕量阳离子 | Ca: ≤0.01% Fe: ≤5 ppm Mg: ≤0.005% Na: ≤0.02% heavy metals: ≤5 ppm (by ICP) |
| SMILES string | [K+].[K+].[O-]S([O-])(=O)=O |
| InChI | 1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 |
| InChI key | OTYBMLCTZGSZBG-UHFFFAOYSA-L |
安全信息
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
m.cnreagent.com
