water treatment PVP K30

1.PVP-K15 used in water treatment. 2.PVP-K15 molecular weight distribution is symmetrical.

Chemical Description: polyvinylpyrrolidone

CAS No.9003-39-8

Molecular and Structural Formula (C6H9NO)n

Characteristics

--A white to creamy white powder;

--Readily soluble in water and a variety of organic solvent;

--Good hygroscopicity and adhension;

No.	Specification	E-1202
1	pH Value (1% suspension in water)	5-8
2	Water-soluble substances, %	≤1.0
3	Water (K.Fischer), %	≤6.0
4	Sulphated ash, %	≤0.4
5	Free-N-vinylpyrrolidone-2-one, ppm	≤10
6	Free-N,N'-Divinyl-Imidazolidone, ppm	≤2
7	Lead, ppm	≤5
8	Arsenic, ppm	≤2
9	Assay, %	11.0-12.8

Applications

1. mainly used in water treatment such as sewage treatment, blood purification and

 on.

water treatment PVP K30