咪唑 AR，99%
Imidazole
品牌：桔子
产品编号：S30365
CAS号：288-32-4
分子式：C3H4N2
分子量：68.08
MDL：MFCD00005183
| 产品名称 : | 咪唑 |
|---|---|
| 英文名称 : | Imidazole |
| 参考名称 : | 咪唑 |
| 参考英文名称 : | 1H-Imidazole |
| CAS号 : | 288-32-4 |
| 分子式 : | C3H4N2 |
| 分子量 : | 68.08 |
| SMILES : | C1=NC=CN1 |
| MDL NO : | MFCD00005183 |
| PubChem CID : | 795 |
| InChIKey : | RAXXELZNTBOGNW-UHFFFAOYSA-N |
| 储存条件 : | RT&&2-8℃ |
| 参考别名 : | 咪唑; 1,3-Diaza-2,4-cyclopentadiene; Glyoxaline |
实验性质
| 外观 / 形态 : | COLOURLESS-TO-YELLOW CRYSTALS WITH CHARACTERISTIC ODOUR.；Liquid; Other Solid；Solid；Solid; [Merck Index] Colorless to yellow solid with an amine-like odor; [OECD SIDS] White or light yellow crystals; [Sigma-Aldrich MSDS] |
|---|---|
| 颜色 / 形态 : | Monoclinic prisms from benzene；Colorless crystals；Colorless-yellow solid |
| 熔点 : | 89 °C；89.52 °C；90.5 °C |
| 沸点 : | 257 °C；257 °C @760 [mm Hg]；268 °C |
| 密度 : | 1.0303 @ 101°C；Density: 1.0303 g/cu m at 101 °C；Relative density (water = 1): 1.03 |
| 折射率 : | Index of refraction: 1.4801 at 101 °C |
| 闪点 : | 145 °C (293 °F) - closed cup；145 °C c.c. |
| 蒸气压 : | 0.002 [mmHg]；Vapor pressure = 0.327 Pa at 25 °C (2.25X10-2 mm Hg at 25 °C)；Vapor pressure, Pa at 20 °C: 0.3 |
| 解离常数 pKa : | 6.95 (at 25 °C)；pK 6.92 at 25 °C (weak base)；Imidazole is a moderately strong base pKb = 7.0, and a weak acid pKa = 14.9；Imidazole is a heterocyclic compound containing two nitrogen atoms with pKa = 7.0 and pKa = 14.9 |
| LogP : | -0.08 |
| 黏度 : | 2.617 mm²/s at 100 °C |
| 自燃温度 : | 480 °C |
| 热分解说明 : | Hazardous decomposition products formed under fire conditions - Carbon oxides, nitrogen oxides (NOx), hydrogen cyanide (hydrocyanic acid).；Decomposes on burning. This produces toxic fumes including nitrogen oxides.；When heated to decomposition it emits toxic fumes of /nitrogen oxides/. |
| 气味 : | Amine-like odor |
| pH : | pH 10.5 for 38 g/L at 20 °C |
| 溶解性 : | Very soluble in water；In water, 241 g/100 g at 20 °C；In water, 2060 g/kg H2O at 19 °C；In water, 663 g/L at 20 °C；Very soluble in ethanol; soluble in diethyl ether, acetone, pyridine; slightly soluble in benzene；Solubility in water, g/100ml at 20 °C: 63.3 (good) |
计算性质
| LogP : | -0.1 |
|---|---|
| 极性表面积 (TPSA) : | 28.7 Ų |
| 氢键供体数 : | 1 |
| 氢键受体数 : | 1 |
| 可旋转键数 : | 0 |
| 精确质量 : | 68.037448136 Da |
| 重原子数 : | 5 |
| 分子复杂度 : | 28 |
资料来源：咪唑产品资料页；来源页标注 PubChem CID 795，资料日期 2026-10-11。
质检证书(COA)
摩尔浓度计算器
启用 JavaScript 后可使用摩尔浓度计算器。