POLYVINYL PYRROLIDONE K90
POLYVINYL PYRROLIDONE K90 For Synthesis
average molecular weight 360000
Short Name: POLYVINYL PYRROLIDONE K90
Synonym: PVP
Basic Details
Article No.
LG3634
Grade
For Synthesis
Purity
CAS No.
9003-39-8
HS Code
3905.9910
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Creamy White
Melting point/ Freezing point [°C]
13.9
Boiling point [°C]
90.0 - 93.0
Relative density, liquid (water=1)
1.23 - 1.29
Chemical Specifications
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 & Hazard Symbols