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易制毒产品二类
易制毒产品三类
食品添加剂
进口原料
乳化剂
碘化物
溶剂
醇类
酯类
烷类
酸类
苯类
胺类
酚类
烯类
醛类
腈类
酮类
醚类
砜类
化合物
无机化工
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  富鑫化工

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产品展示 | Product
乳酸

名称：乳酸

 

中文别名：DL-乳酸

 

英文名称：DL-Lactic acid 

 

其它名称：2-羟基丙酸；α-羟基丙酸；丙醇酸 

 

CAS号：50-21-5 

 

分子式：C3H6O3 

 

缩写式：HL（其中L表示乳酸根） 

 

分子量：90 

 

相对密度：1.200 

 

熔点：18℃ 

 

密度：1.209 

 

沸点：122℃ (15 mmHg) 

 

CAS NO：50-21-5 

 

乳酸纯品为无色液体，工业品为无色到浅黄色液体。无气味，具有吸湿性。相对密度1.2060(25/4℃)。熔点18℃。沸点122℃（2kPa)。折射率nD(20℃)1.4392。能与水、乙醇、甘油混溶，不溶于氯仿、二硫化碳和石油醚。在常压下加热分解，浓缩至50%时，部分变成乳酸酐，因此产品中常含有10%-15%的乳酸酐。 

 

性状纯品为无色液体，工业品为无色到浅黄色液体。 

 

食品用途：

 

     乳酸可用在果酒、饮料、肉类、食品、糕点制作、蔬菜 ( 橄榄、小黄瓜、珍珠洋葱 ) 腌制以及罐头加工、粮食加工、水果的贮藏，具有调节 pH 值、抑菌、延长保质期、调味、保持食品色泽、提高产品质量等作用； 

 

     调味料方面，乳酸的酸味可增加食物的美味，在色拉、酱油、醋等调味品中加入一定量的乳酸，可保持产品中的微生物的稳定性、~性，同时使口味更加温和；