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Pharmaceutical grade Polyvinyl Alcohol CAS No.: 9002-89-5

Name: Polyvinyl Alcohol Pharmaceutical grade
CAS No.: 9002-89-5
Package: 1kg/bag, 5kg/carton, 25kg/drum


Appearance:

White to yellowish powder or translucent granule.
Medium soluble in ethanol, slightly soluble in acetone, almost insoluble in acetone. The solubility of PVA XY -88 model is good in hot water and cold water.
Quality Standard: CP2020; USP43-NF38; EP10.0; JP17; GB31630-2014


Features:

Prepared by alcoholysis of polyvinyl acetate in methanol solution by adding alkali solution. The M. F. is (CH2CHOH) n (CH2CHOCOCH3) m, where ‘m + n’ represents the average degree of polymerization, and m/n should be 0~0.35. The average M. W. shall be 20000 ~220000. There are many types of polyvinyl alcohol according to the degree of polymerization and alcoholysis. The naming rule is "polyvinyl alcohol xy-mn", where xy represents average degree of polymerization and mn represents degree of alcoholysis.
Our company mainly produces models with alcoholysis degree of 88%, including 03-88, 05-88, 17-88, 24-88, 50-88 models, and other models can be customized if necessary.