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021-54479081
021-54461587
本產品僅用于科研,不用于臨床
中文名稱: 硬脂酸
其他中文名稱: 脂蠟酸;司的令;十八酸;十八烷酸;十八碳烷酸
脂蠟酸英文名稱: Stearic Acid
其他英文名稱: Stearinic acid;Stearophanic acid
產品規格: AR
包裝:500克
CAS號:57-11-4
C18H36O2=284.48
級別:AR
熔點:67~70℃
酸值:193~199mgKOH/g
水溶性酸:合格
中性脂肪及不皂化物:合格
灼燒殘渣(以硫酸鹽計):≤0.1%
性狀:葉片狀結晶。90~ 100℃時緩慢揮發。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,極微溶于水。相對密度 (d70)0.847。沸點 383℃。折光率 (n80D) 1.4299。半數致死量(大鼠,靜脈)21.5mg/kg。有刺激性
用途:生化研究。測定水硬度。比濁法中測定鈣、鎂和鋰。測定相對分子量的溶劑。制造硬脂酸鹽和酯。碳黑擴散劑。促進酸化的活性劑
保存:RT
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