Pure lactic acid is a colorless liquid, is a colorless to pale yellow liquid. Odorless, hygroscopic. The relative density of 1.2060 (25/4 ℃). Melting point 18 ℃. Boiling point 122 ℃ (2kPa). Refractive index nD (20 ℃) ??1.4392. With water, ethanol, glycerin, insoluble in chloroform, carbon disulfide and petroleum ether. Heating under normal pressure, concentrated to 50%, part of the anhydride into milk, thus products often contain 10% -15% of the milk anhydride.
2013年8月6日星期二
Lactic acid is an important purpose of
Lactate (Lactic Acid) is an important purpose organic acids, widely present in the human Body, the body of animals, plants and micro-organisms. Its configuration and optical activity can be divided into Ethyl lactate, D a milk
Acid, DL-lactic acid categories. Because the human body metabolizes L-lactic acid has only one L-lactate dehydrogenase,Therefore, only L-lactate metabolism in the body can be fully utilized. The D-lactic acid and DL-lactic acid overdose
Intake is likely to cause metabolic disorders and even lead poisoning. Therefore, from a health point of view, World Health Organization clearly stipulates that adult daily intake of D-lactic acid shall not exceed ferrous lactate ody weight, food for babies under three months should not be added to D-lactic acid, and for L Lactic acid is not an unrestricted .
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