POLYVINYL PYRROLLDONE K90 FOR SYNTHESIS

Product Code B-02057 Grade FOR SYNTHESIS
Purity 99.5 % Brand Bio-Chem
Molecular Formula (C6H9NO)n CAS No. 9003-39-8
Molecular Weight 0.00 H.S.Code 3905.99100
Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Creamy White
Melting point/ Freezing point [°C] 13.9 °C Boiling point [°C] 90 - 93 °C
Relative density, liquid (water=1) 1.23 - 1.29

Packaging

Specification

Appearance
White to yellowish white hygroscopic powder or flakes
K-value
85.0 – 95.0
pH (5 % solution)
3.0 – 7.0
Assay (ex N)
11.5 – 12.8%
Aldehydes
Max. 0.05%
Formic acid
Max. 0.5%
Hydrazine (N2H4)
Max. 0.0001%
Lead (Pb)
Max. 0.001%
Peroxide (as H2O2)
Max. 0.04%
Vinylpyrrolidone
NMT 0.001%
2-Pyrrolidone
NMT 3.0%
Residue on ignition
Max. 0.1%
Water (H2O)
Max. 5.0%

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning

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