NVP N-vinylpyrrolidone Povidone
Properties of NVP
Colorless or slight yellow transparent liquid with faint odor at room temperature. It can be dissolved in water and varieties of organic solvents. It is reactive and susceptible to hydrolyze and polymerize.
Specifications of NVP
Item
|
Characteristics |
Hydrometer (25°C) g/ml |
Moisture % |
Melting point °C |
Boiling point °C |
Purity (wt %) |
Chroma APHA |
α-P% |
Flash point °C |
NVP |
Colorless liquid |
1.03-1.04
|
≤0.2
|
13.0-14.0
|
214-215 96deg; C(14mmHg) |
≥99.5
|
100
|
≤0.2
|
95
|
Remarks
NVP can self-polymerize when shaken or preserved for a long time or under illumination, so the antipolymerizer is needed, which should be distilled before use.
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