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021-54461587
本产品仅用于科研,不用于临床
中文名称: 硬脂酸
其他中文名称: 脂蜡酸;司的令;十八酸;十八烷酸;十八碳烷酸
脂蜡酸英文名称: Stearic Acid
其他英文名称: Stearinic acid;Stearophanic acid
产品规格: AR
包装:500克
CAS号:57-11-4
C18H36O2=284.48
级别:AR
熔点:67~70℃
酸值:193~199mgKOH/g
水溶性酸:合格
中性脂肪及不皂化物:合格
灼烧残渣(以硫酸盐计):≤0.1%
性状:叶片状结晶。90~ 100℃时缓慢挥发。1g溶于21ml乙醇、5ml苯、2ml氯仿、26ml丙酮、3.4ml二硫化碳,溶于乙酸戊酯和甲苯,极微溶于水。相对密度 (d70)0.847。沸点 383℃。折光率 (n80D) 1.4299。半数致死量(大鼠,静脉)21.5mg/kg。有刺激性
用途:生化研究。测定水硬度。比浊法中测定钙、镁和锂。测定相对分子量的溶剂。制造硬脂酸盐和酯。碳黑扩散剂。促进酸化的活性剂
保存:RT
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