PVP K25
CHEMICAL
FORMULA：(C6H9NO)n
CAS:9003-39-8 shelf life: 24 months
Standard: USP
39 grade Batch No. K252266P
|
TEST
ITEMS |
INDEX |
TEST VALUE |
|
Appearance |
White to milky white hygroscopic powder |
conform |
|
K Value |
22.5～27 |
25.2 |
|
Nitrogen
content % |
11.5～12.8 |
12.3 |
|
NVP
content (Impurity A) PPM |
＜10 |
3 |
|
2-P
content (Impurity B)% |
3.0MAX |
1.5 |
|
Solution color (5% aqueous
solution) |
the color is lighter than the reference solution B6, BY6
and R6 |
conform |
|
Hydrogen Peroxide
PPM |
400 MAX |
118 |
|
PH value
(5% in water) |
3～5 |
3.3 |
|
Heavy Metal
PPM |
≤10 |
＜10 |
|
Formic Acid% |
0.5 MAX |
0.3 |
|
Aldehydes
PPM |
500 MAX |
201 |
|
Hydrazine PPM |
1 MAX |
＜1 |
|
Burning
residue % |
0.07 MAX |
0.03 |
|
Water (K.
Fischer) % |
5.0 MAX |
2.8 |
Storage:
stored in unopened original
containers and protected from light at max.25℃.
Packing: 25kg
net in fibre drum
Verifier:011 Analyst:023 Date:2025-10-04
