PVP

K17

K25

K30

K90

Appearance

White powder

Clarity of solution

Clear

K-value

15-20

22-28

27-33

90-103

N-Vinylpyrrolidone

Not more than 0.2%

Not more than 0.2%

Not more than 0.2%

Not more than 0.2%

Water

Not more than 0.5%

Not more than 0.5%

Not more than 0.5%

79-81%

Sulphate ash

Not more than 0.02%

Not more than 0.02%

Not more than 0.02%

Not more than 0.02%

Solid content

Not less than 95%

Not less than 95%

Not less than 95%

19-21%

PH value

3.0-7.0

3.0-7.0

3.0-7.0

7.0-10.5