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Product Name: copovidone
Inci Name: VP / VA copolymer
CAS No.: 25086-89-9
Chemical formula: (c6h9no) n. (C4H6O2) M
Product features: white to milky white powder, easy to absorb moisture, soluble in water, ethanol and other organic solvents, with good molding, adhesion and surface activity.
|
Appearance |
White to milky moisture absorbing powder or sheet |
|
K value |
25.20~30.24 |
|
Solubility |
Soluble in water, alcohol and chloroform |
|
Peroxide (calculated by H2O2) |
400 ppm max. |
|
Hydrazine |
1 ppm max. |
|
Residual monomer (VP + VA) |
0.1% max. |
|
2-pyrrolidone |
0.5% max. |
|
Heavy metals (calculated by lead) |
20 ppm max. |
|
Water content |
5.0% max. |
|
Sulphated ash |
0.1% max. |
|
Vinyl acetate |
35.3~42.0% max. |
|
Nitrogen content |
7.0~8.0 % |
Product application: copovidone can be used as water-soluble adhesive and dry powder adhesive in wet granulation and direct tablet pressing in the pharmaceutical field, and can be used as film-forming material
