Molecular formula :
nature : Alias lactate. Because molecular asymmetry is a carbon atom, so there are two kinds of optical isomers; D-lactate (D-lactate), and L-lactic acid (L-lactide). Contour and the S-L-mix in the non-racemic (DL-lactic acid), white crystals. Odorless, with hygroscopicity. 18 ° C melting point. The boiling point of 122 ° C (LAP). Refractive index of 1.4392. The relative density of 1.2060. With water, ethanol, glycerol Compatibility, not soluble in chloroform, petroleum ether. Industrial production Law (1) fermentation, food or molasses as raw material, lactic acid fermentation, separation and purification in the system. (2) synthesis, hydrocyanic acid to react with acetaldehyde 2-hydroxy-propanenitrile, obtained by the hydrolysis. The main food for the sourness agents and preservatives, and used in the manufacture of drugs such as calcium lactate. Also synthetic esters for the raw materials.
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