| 中文名硬脂酸 中文同义硬脂酸;十八(烷)酸;十八碳烷酸;脂蜡酸;硬蜡酸;硬酯酸;司的令;硬脂酸800型 英文名Stearic acid 英文同义ACIDUM STEARICUM 50;CETYLACETIC ACID;FEMA 3035;CARBOXYLIC ACID C18;C18;C18:0 FATTY ACID;hystrene5016;hystrene7018 CAS57-11-4 分子式C18H36O2 分子量284.48 EINECS266-928-5 结构式  性质熔点67-72 °C(lit.)沸点361 °C(lit.) 密度0.84 蒸气压1 mm Hg ( 173.7 °C) FEMA3035 | STEARIC ACID 折射率1.4299闪点>230 °F 储存条件2-8°C 溶解度Practically insoluble in water, soluble in ethanol (96 per cent) and in light petroleum (bp: 50-70 °C). 酸度系数(pKa)pKa 5.75±0.00(H2O t = 35) (Uncertain) 形态powder 比重0.84 (80℃) 颜色White 水溶解性0.1-1 g/100 mL at 23 ºCJECFA Number116Merck14,8804BRN608585InChIKeyQIQXTHQIDYTFRH-UHFFFAOYSA-NNIST 化学物质信息Octadecanoic acid(57-11-4) EPA化学物质信息Stearic acid (57-11-4) | |||