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9月3日星期二
is also known as the pearl pearl fiber blend recycled fiber
Also known as the pearl pearl fiber blend recycled fiber , referred to as pearl fiber , it is made of viscose as a substrate , using high-tech means to fine pearl powder and viscose blend spinning steel. Calcium lactate raw material for viscose fibers derived from natural cotton linters , ultra-fine pearl powder from freshwater cultured pearls, fiber body interior and exterior pearl particles uniformly distributed on the human body is very safe. In addition, Li Kennuo pearl fiber viscose fiber not only keeps moisture permeability , easy to stain , anti-static , good drape and other features, but it also has good spinnability and taking comfort, soft smooth , shiny shiny , good compatibility with the skin can transmit far-infrared and UV . Testing by the ferrous lactate , fiber contains 18 amino acids the human body , and more than 20 kinds of trace elements and active ingredient calcium . In human skin slightly acidic conditions, some of the active ingredient pearl particles can penetrate through the skin sweat dissolved and absorbed by the body by increasing the activity of SOD in vivo inhibition of lipofuscin , reaching the skin whitening effect. These advantages are not generally fibers can be compared.
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