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PVP-K Series |
![](../images/col_chem_composition.gif) |
£¨C6H9NO)n |
![](../images/col_cas.gif) |
9003-39-8 |
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Product name K15 K17 K25 K30 K90 K value 13-18 15-19 22-28 26-33 81-97 Efficient content(%) >95 >95 >95 >95 >95 Vinylpyrrolidone(%) <0.2 <0.2 <0.2 <0.2 <0.2 Ash %(sulphate) <0.1 <0.1 <0.1 <0.1 <0.1 Moisture(%) <5.0 <5.0 <5.0 <5.0 <5.0 PH value(5% aqueous solution) 3-7 3-7 3-7 3-7 3-7
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powder or aqueous solution£¬PVP is diffluent in water, alcohol, amine and halohydrocarbon, but is not dissolved in acetone
and aether etc.. It has good solubility, biocompatibility, and physiologically inert,
film-forming character,
colloid protect ability and compound ability to many organic or inorganic compounds.
It is also steady to acid, salt and heat, so it is widely used.
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