Polyvinylpyrrolidone PVP K90

Product Name: PVPK90 
Synonyms: Polyvinylpyrrolidone cross-linked
CASNO.: 25249-54-1
Molecular formula: C6H9NO

Specification:
Appearance: White or yellowish-white, hygroscopic flakes.
PH (1.0g-20.0ml): 3.0-7.0
Water: NMT 5.0%
Residue on ignition: NMT 0.1%
Lead: NMT 10 ppm
Aldehydes: NMT 0.05%
Hydrazine: NMT 1 ppm
Vinylpyrrolidinone: NMT 0.2%
K-value: 81.0~97.2
Assay (Nitrogen): 11.5~12.8%
TAMC: NMT1000cfu/g
TYMC: NMT100cfu/g
Staphylococcus aureus: Negative in 10g
Salmonella: Negative in 10g
Pseudomonas aeruginosa: Negative in 10g
E. Coli: Negative in 10g

Applications:
PVP K90 is a new and excellent pharmaceutical excipient. As adhesive , thickening agent
and suspension stabilizer are used in preparation, PVP has been used as excipient more than one hundred drugs.
Package and Storage:
1. 25kg/Plastic/cardboard drum
2. Preserve in tight containers