Tannic acid
Tannic acid :Used in manufacturing in the pharmaceutical industry as gallic acid, pyrogallol, sulfa drugs, raw materials. The tannin hemostatic medicine has been used for treatment of pharyngitis, tonsillitis, hemorrhoids and skin blistering disorders such use can stop the diarrhea, intestinal out equipment, etc.. Tannins with metals, alkaloids and glycosides to generate precipitation, with detoxification of these substances. Tannins used in tanning, the manufacture of ink, paper and silk glue, boiler scale, etc., but also a matchmaker agent, the clarity of beer and wine agent, rubber condensing agent and the determination of beryllium, aluminum, nickel, copper and other metal reagents. In chemical production can be prepared from gallic acid and focus of gallic acid. Tannin used as a dilution of brackish-water crab mud drilling. Tannin powder with caustic soda in proportion to preparation of tannin lye, can reduce the shear thickening mud and sticky banana, increase mud flow. On the contrary, tannin powder directly join the mud, due to its weak acid, causing a decline in the slurry pH, ion exchange with clay particles. Reduce the hydration of the surface of clay particles, so that the formation of this network structure of the clay particles to improve the shear viscosity of the mud. In China GB 2760-89 provisions curing tannin can be used for low and wine, as the agent of clarity can remove the cloudy state of the protein and other suspended material. To the food industry as an increase in the astringent agent, crude oil deodorant.
Read more:buy Tannic acid
No comments:
Post a Comment