Chemical Structure Homopolymer of Vinylpyrrolidone
CTFA Nomenclature Polyvinypyrrolidone(Abbreviated to PVP)
Physical Properties exists as white or milky white powder, and colorless or slight
yellow transparent liquid. It can dissolve in water, alcohol,
isopropanlol or chloroform , not in acetone or diethyl ether,
polymers having molecular weight under30000 can excreted by
human kidney.
Specification
Technical grade
|
Item |
K12
(liquid) |
K15
(liquid) |
K17
(powder) |
K25
(powder) |
K30
(liquid) |
|
K value |
10-13 |
12-18 |
15-19 |
22-28 |
27-33 |
| Vinylpyrrolidone % |
<0.2 |
<0.2 |
<0.2 |
<0.2 |
<0.2 |
| Moisture % |
- |
- |
<5.0 |
<5.0 |
- |
| Solid % |
40+1 |
40+1 |
>95 |
>95 |
30+1 |
|
PH (10% in water) |
7-9 |
7-9 |
3-7 |
3-7 |
7-9 |
| Sulfate Ash % |
<0.1 |
<0.1 |
<0.1 |
<0.1 |
<0.1 |
|
Item |
K30
(powder) |
K60
(liquid) |
K80
(liquid) |
K90
(liquid) |
K120
(liquid) |
| K value |
27-33 |
55-65 |
70-90 |
81-97 |
110-125 |
| Vinylpyrrolidone % |
<0.2 |
<0.2 |
<0.2 |
<0.2 |
<0.2 |
| Moisture % |
<5.0 |
- |
- |
- |
- |
| Solid % |
>95 |
45+1 |
25+1 |
20+1 |
15+1 |
|
PH (10% in water) |
3-7 |
7-9 |
7-9 |
7-9 |
7-9 |
| Sulfate Ash % |
<0.1 |
<0.1 |
<0.1 |
<0.1 |
<0.1 |
Pharmaceutical grade ( CP2000 / USP26 )
|
Items |
K25
(powder) |
K30
(powder) |
K90
(liquid) |
|
K value |
22-28 |
27-32 |
88-96 |
|
VinylPyrrolidone % |
<0.1 |
<0.1 |
<0.1 |
|
Moisture % |
<5.0 |
<5.0 |
- |
| Solid % |
- |
- |
20+1 |
|
Sulfate Ash % |
<0.1 |
<0.1 |
<0.1 |
| PH |
3-7 |
3-7 |
7-9 |
| Nitrogen % |
11.5-12.8 |
11.5-12.8 |
11.5-12.8 |
| Aldehyde of CH CHO % |
<0.2 |
<0.2 |
<0.2 |
|
Heavy metal PPM |
<10 |
<10 |
<10 |
|
Peroxide as PPM |
<400 |
<400 |
<400 |
All 2Pages,Now at page 1 1 2 |
2005 © copyright
by Medichem
Specialties Corporation
