Description
Polyvinylpyrrolidone / Povidone /PVP
1. USP/BP/EP
2. White powder and odorless
3. Prompt delivery time and excellent price
Product Introduction
Polyvinylpyrrolidone K series exists as white or yellowish powder and aquous solution. It can dissolve in water and a variety
of organic solvents. It has good hygroscopicity, filmforming capability, complexing ability and physiology
compatibility.
Specification(BP/USP/EP)
Product
Povidone K15
Povidone K17
Povidone K25
Povidone K30
Povidone K60
Povidone K90
Appearance
White or yellowish-white,hygroscopic powder or flakes
Solubility
Freely soluble in water,in ethano(96%) and in methanol,very slightly soluble in acetone.
Appearance of Solution
Clearly and not moren intensely coloured than reference solution B6,BY6 or R6
Identifications
Meet ID Tests
pH Value(5% in aqueous solution)
3.0-5.0
3.0-5.0
3.0-5.0
3.0-5.0
4.0-7.0
4.0-7.0
Viscosity(Expressed as K Value)
12.75-17.25
15.3-18.36
22.5-27.0
27.0-32.4
54.0-64.8
81.0-97.2
Adehydes(Expressed as Acetaldehyde)
500 ppm max.
500 ppm max.
500 ppm max.
500 ppm max.
500 ppm max.
500 ppm max.
Peroxides(Expressed as H2O2)
400ppm max.
400 ppm max
400 ppm max
400 ppm max
400 ppm max
400 ppm max
Formic Acid
0.5% max.
0.5% max.
0.5% max.
0.5% max.
0.5% max.
0.5% max.
Hydrazine
1ppm max.
1ppm max.
1ppm max.
1ppm max.
1ppm max.
1ppm max.
N-Vinylpyrrolidone(Impurity A)
USP27
1000 ppm max.
1000 ppm max.
1000 ppm max.
1000 ppm max.
1000 ppm max.
1000 ppm max.
Current USP/EP/BP
10 ppm max.
10 ppm max.
10 ppm max.
10 ppm max.
10 ppm max.
10 ppm max.
2-Pyrrolidone(Impurity B)
3.0% max.
3.0% max.
3.0% max.
3.0% max.
3.0% max.
3.0% max.
Heavy Metals(as Pb)
10 ppm max.
10 ppm max.
10 ppm max.
10 ppm max.
10 ppm max.
10 ppm max.
Water
5.0% max.
5.0% max.
5.0% max.
5.0% max.
5.0% max.
5.0% max.
Sulphated Ash
0.1% max.
0.1% max.
0.1% max.
0.1% max.
0.1% max.
0.1% max.
Nitrogen Content
11.5-12.8%
11.5-12.8%
11.5-12.8%
11.5-12.8%
11.5-12.8%
11.5-12.8%
Packing and Storage
Packed in 25 kg/fiber drum, stored in cool dry places.
Complaint
