氯化钾 AR，99.5%
Potassium chloride
品牌：桔子
产品编号：S24120
CAS号：7447-40-7
分子式：KCl
分子量：74.55
MDL：MFCD00011360
| 产品名称 : | 氯化钾 |
|---|---|
| 英文名称 : | Potassium chloride |
| 参考名称 : | 氯化钾 |
| 参考英文名称 : | Potassiumchloride |
| CAS号 : | 7447-40-7 |
| 分子式 : | KCl |
| 分子量 : | 74.55 |
| SMILES : | [K+].[Cl-] |
| MDL NO : | MFCD00011360 |
| PubChem CID : | 4873 |
| InChIKey : | WCUXLLCKKVVCTQ-UHFFFAOYSA-M |
| 储存条件 : | RT |
| 参考别名 : | 氯化钾; Potassium Chloride |
实验性质
| 熔点 : | 771 °C |
|---|---|
| 外观 / 形态 : | COLOURLESS HYGROSCOPIC CRYSTALS.；Colourless, elongated, prismatic or cubital crystals or white granular powder. Odourless；Liquid; Other Solid; Liquid; CBI; Large Crystals; Wet Solid; Other Solid; Dry Powder；Potassium chloride appears as white colorless cubic crystals. Strong saline taste. (NTP, 1992)；White crystals that are hygroscopic and water soluble; tastes similar to NaCl; [CAMEO] |
| 颜色 / 形态 : | White crystals or crystalline powder；Colorless crystals；Colorless, elongated, prismatic, or cubical crystals or as a white granular powder |
| 沸点 : | Sublimes 1500 °C；Specific heat = 693.7 J/kg-K; Heat of fusion = 337.7 kJ/mol; Enthalpy of formation = -436.7 kJ/mol; Entropy (S) = 82.55 J/mol-K; Dielectric constant (at 1X10+6 Hz) = 4.68; Thermal coeff of expansion (15-25 °C) = 33.7X10-6/K; Boiling point of saturated solution at 1.013 bar = 108.6 °C；Sublimes at 2732 °F (NTP, 1992) |
| 密度 : | 1.98 g/cm³；1.984 (NTP, 1992) - Denser than water; will sink；1.988 g/cu cm；Density of saturated aq soln at 15 °C: 1.172 |
| 溶解性 : | In water, 35.5 g/100 g water at 25 °C；1 g dissolves in 2.8 mL water, 1.8 mL boiling water ... /addtion of/ hydrochloric acid, or sodium chloride, or magnesium chloride, diminishes its solubility in water；Insoluble in ether, acetone；1 g dissolves in 14 mL glycerol, about 250 mL alcohol. Insoluble in ether, acetone.；For more Solubility (Complete) data for POTASSIUM CHLORIDE (6 total), please visit the HSDB record page. |
| 气味 : | Odorless |
| pH : | pH: about 7 |
计算性质
| 极性表面积 (TPSA) : | 0 Ų |
|---|---|
| 氢键供体数 : | 0 |
| 氢键受体数 : | 1 |
| 可旋转键数 : | 0 |
| 精确质量 : | 73.9325592 Da |
| 重原子数 : | 2 |
| 分子复杂度 : | 2 |
资料来源：氯化钾产品资料页；来源页标注 PubChem CID 4873，资料日期 2026-10-11。
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