POLYVINYL PYRROLIDONE K25
POLYVINYL PYRROLIDONE K25 For Synthesis
average molecular weight 24000Conforms to USP
Short Name: POLYVINYL PYRROLIDONE K25
Synonym: PVP
Basic Details
Article No.
LG3632
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
White to yellowish
Melting point/ Freezing point [°C]
220 (decomposes)
Auto-ignition temperature [°C]
440
Relative density, liquid (water=1)
1.2 g/cm3 at 20°C
Chemical Specifications
Appearance
White to yellowish white hygroscopic powder or flakes
K-value
23.0-27.0
Identification as per USP
Complies
Residue on ignition
Max 0.1%
pH (5% solution)
3.0 -7.0
Water (H2O)
Max 5.0%
Lead (Pb)
Max 0.001%
Aldehydes
Max 0.05%
Hydrazine (N2H4)
Max 0.0001%
Vinylpyrrolidone
Max 0.001%
Nitrogen content (as N)
11.5-12.8%
Safety Information & Hazard Symbols