polyvinyl pyrrolidone(PVP)
Brief Introduction:
Polyvinyl pyrrolidone, referred to as PVP, is a non-ionic polymer compound; the most characteristic, deepest and most widely studied fine chemical among N-vinylamide polymers. It has developed into three categories of non-ionic, cationic and anionic, three specifications of industrial grade, pharmaceutical grade and food grade, and a series of homopolymer, copolymer and cross-linked polymer products with relative molecular weight ranging from thousands to more than one million , and has been widely used for its excellent and unique properties.
Specifications of PVP K90:
| Test Items | Specifications |
| Appearance(25℃) | White to yellowish-white powder or flakes |
| Colour(APHA 5% In Solution) | 60max |
| K Value(1% Solution In Water) | 88 ~ 96 |
| Water(K. Fischer) | 5.0%max |
| Vinylpyrrolidone | 0.01%max |
| pH Value(10% Solution In Water) | 4.0 ~ 9.0 |
Packaging:
1kg net aluminum foil bag; 25kg net cardboard box or cardboard drum.
Storage Conditions:
Preserved in unopened original containers in a cool dry place before using; kept away from direct sunlight, heat and moisture.
Shelf Life:
24 months if stored under above mentioned conditions.
