CTFA name: Poly Vinyl Pyrrolidone (ab. PVP) CAS NO.:9003-39-8
Products properties: White or off-white powder and clear aquous solution.
Soluble in water and a variety of organic solvents. PVP-K series also offerlow toxicity, good film-forming capacity, good stability, physiollgical inertness and adhesive ablility.
Pharmaceutical grade PVP-K series(CP2005,USP28)
Items K-30 K-90
K value 27-32 81-97
N-vinylpyrrolidone% ≤0.1 ≤0.1
Water% ≤5.0 ≤5.0
Residue on ignition% ≤0.1 ≤0.1
PH value(5%water solution) 3-7 3-7
N%(nitrogen) 11.5-12.8 11.5-12.8
Aldehyde as acetaldehyde% ≤0.05 ≤0.05
Heavy metal as pb.(PPM) ≤10 ≤10
Hydrazines(PPM) ≤1 ≤1
Peroxides%(H2O2) ≤400 ≤400
