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Product Name:Copovidone
INCI Name:VP/VA Copolymer
CAS NO.: 25086-89-9
Formula: (C6H9NO)n.(C4H6O2)m
Refference:Current USP/NF/EP/BP/JP
Properties: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:
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Appearance
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White or yellowish-white powder or flakes,hygroscopic
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Viscosity(Express as K Value)
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25.20~30.24
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Solubility
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Freely soluble in water,in alcohol and in methylene chloride
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Identifications
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A.Infrared Absorption
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B.A red colour appears
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C.A violet colour appears
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Peroxides(Expressed as H2O2)
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400 ppm max.
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Hydrazine
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1 ppm max.
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Monomers(VP+VA)
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0.1% max.
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Impurity A(2-Pyrrolidone)
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0.5% max.
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Heavy Metals(as Pb)
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20 ppm max.
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Loss on Drying
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5.0% max.
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Sulphated Ash
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0.1% max.
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Ethenyl Acetate Content
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35.3~42.0% max.
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Nitrogen Content
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7.0~8.0 %
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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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