Chemical Name：Polyvinylpyrrolidone
CAS NO.：9003-39-8
Molecular formula：(C6H9NO)n
Melting point：130°C
Boiling point：217.6°C
Flash point：93.9°C
Density：1.144g/cm3
|
Items |
USO26 |
EP7.0/USP36 |
||||
|
K15 |
K30 |
K90 |
K15 |
K30 |
K90 |
|
|
Appearance |
White or yellowish-white,hygroscopic powder or flakes |
|||||
|
K Value |
12.8-17.3 |
27.0-32.4 |
81.0-97.2 |
12.8-17.3 |
27.0-32.4 |
81.0-97.2 |
|
NVP Impurity,ppm |
/ |
/ |
/ |
10 |
10 |
10 |
|
water，% |
5 |
5 |
5 |
5 |
5 |
5 |
|
pH Value(5% in aqueous solution) |
3.0-7.0 |
3.0-7.0 |
3.0-7.0 |
3.0-7.0 |
3.0-7.0 |
3.0-7.0 |
|
Sulphated Ash，% |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
|
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 |
|
2-Pyrrolidone，% |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
|
Formic Acid（ppm,%) |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
|
Adehydes(Expressed as Acetaldehyde),ppm |
500 |
500 |
500 |
500 |
500 |
500 |
|
Heavy Metals(as Pb),ppm |
10 |
10 |
10 |
10 |
10 |
10 |
|
Hydrazine,ppm |
1 |
1 |
1 |
1 |
1 |
1 |
|
Peroxides(Expressed as H2O2),ppm |
400 |
400 |
400 |
400 |
400 |
400 |
Ningbo Weituo Chemical Co., Ltd. Ningbo Weituo Chemical Co., Ltd.
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