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.
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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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