China Wholesale - Copovidone – Y&R
China Wholesale - Copovidone – Y&R Detail:
Copovidone with 60/40 ration of N-Vinylpyrrolidone to Vinyl Acetate,soluble in most organic solvents.Which exists in powder,Copovidone forms hard,water-removable and glossy films,it has excellent compatibility with many plasticizers and modifiers. Good solubility in water,alcohol and other organic solvents.
Key Technical Parameters:
Appearance | White or yellowish-white powder or flakes,hygroscopic |
Viscosity(Express as K Value) | 25.20~30.24 |
Solubility | Freely soluble in water,in alcohol and in methylene chloride |
Identifications | A.Infrared Absorption |
B.A red colour appears | |
C.A violet colour appears | |
Peroxides(Expressed as H2O2) | 400 ppm max. |
Hydrazine | 1 ppm max. |
Monomers(VP+VA) | 0.1% max. |
Impurity A(2-Pyrrolidone) | 0.5% max. |
Heavy Metals(as Pb) | 20 ppm max. |
Loss on Drying | 5.0% max. |
Sulphated Ash | 0.1% max. |
Ethenyl Acetate Content | 35.3~42.0% max. |
Nitrogen Content | 7.0~8.0 % |
Applications:
Copovidone mainly used as water-soluble binder and dry binder in wet/direct granulation processes,also it can be used as film forming materials.
*Water soluble tablet binder,suitable for wet or dry granulation/direct compression processes.
*Film Former:permeable film coating for tablet and sugar coatings to protect against splitting,decrease moisture sensitivity and provide good film adhesion.
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