PVP K90

CAS number: 9003-39-8

Molecular formula: (C6H9NO)n

molecular weight: 111.143

Chemical structure:

Product namePVP K90
Shelf life Two years
Inspection  Standard USP32
ItemsSpecificationsResults
PH Value(5% aqueous solution)4.0-7.05.7
Water≤5.0%3.6%
Heavy Metals(as Lead)≤10PPM<10PPM
Acetaldehyde≤0.05%<0.05%
Hydrazine≤1.0PPM<1.0PPM
N-Vinylpynrrolidinone≤10PPM<10PPM
K-Value81-9693.5
Nitrogen content11.5-12.8%12.1%
Residue on ignition≤0.1%0.05
Peroxide≤400PPM<400PPM
ConclusionIt conforms to USP32.