乳酸メチル 化学特性,用途語,生産方法
外観
無色〜ほとんど無色, 澄明の液体
定義
本品は、乳酸(*)のメチルエステルであり、次の化学式で表される。
参照表示名称：乳酸
溶解性
水, アルコール, アセトン, その他ほとんどの有機溶剤と混和。水及びエタノールに溶ける。
用途
セルロースアセテート溶剤、ラッカー,印刷インキなどの配合剤,医薬や農薬の合成原料
化粧品の成分用途
溶剤、香料、香味剤
化学的特性
Methyl lactate is a colorless transparent liquid. It is soluble/miscible in water, acetone, ethyl alcohol, and other organic solvents. It is used as a cellulose acetate solvent.
使用
Methyl lactate is used as a solvent for nitrocellulose, cellulase acetate, cellulase acetobutyrote and cellulase acetaprapionate. It is used in the manufacture of lacquers and dopes where it contributes high tolerance for diluents, good flaw and blush resistance.
定義
ChEBI: Methyl lactate is a lactate ester resulting from the formal condensation of the carboxy group of 2-hydroxypropanoic acid with methanol. It has a role as a metabolite. It is a lactate ester and a methyl ester.
危険性
Moderate fire risk.
安全性プロファイル
Methyl lactate has been classed as non-irritant to the eyes of guinea pigs.
The estimated average lethal dose for the female rat following i.p. injection of methyl lactate was >2000 mg/kg body weight. Observations included narcosis, respiratory distress and peritoneal adhesions. The estimated non toxic dose and estimated maximum dose without gross lesions at necropsy was 500 mg/kg body weight.
合成
Methyl lactate is prepared by the esterification of methyl alcohol with lactic acid.
純化方法
Methyl lactate is easily hydrolyzed and often contains impurities such as free lactic acid, methanol and water. Free acid can be removed by washing after neutralization with alkali. Moisture can be removed by azeotropic distillation of an azeotropic mixture with benzene. Then, it was purified by distillation under reduced pressure. Since calcium chloride and the like form molecular compounds with methyl lactate, they cannot be used as desiccants. When the methyl lactate is mixed with water, it can be extracted and recovered with benzene, ether, etc.
乳酸メチル 上流と下流の製品情報
原材料
準備製品