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PVP-K (PVP Povidone)
PVP-K30, Povidone k30
PVP-K90, Povidone k90
PVP-K25, Povidone k25
PVP-K15, Povidone k15
PVP-K17, Povidone k17
PVP-VA (PVP/VA Copolymer)
PVP-VA64, PVP VAS630
PVP-VA73, PVP VAW735
PVP-VA37
PVP-VA55
PVP-Iodine
PVP-P (Crosslinked)
NVP (N-Vinylpyrrolidone)
NMP (N-Methyrrolidone)
NEP (N-Ethylpyrrolidone)
PQ-11 (Polyquaterniunm)
GBL (г-Butyrolactone)
2-Pyrrolidone
Products
PVP-K (PVP Povidone)
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
K30
K90
K25
K15
K17
1
PH(in 5% solution)
3-5
3-5
3-5
3-5
3-5
2
Viscosity,as K-value
29-32
85-95
24-27
26-30
15-19
3
Aldehyde,ppm
≤500
≤500
≤500
≤500
≤500
4
Peroxides(as H2O2),ppm
≤400
≤400
≤400
≤400
≤400
5
Hydrazine,ppm
≤1
≤1
≤1
≤1
≤1
6
Impurity A(NVP),ppm
≤10
≤10
≤10
≤10
≤10
7
Impurity B(2-pyrrolidone),%
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
8
Heavy metals,ppm
≤10
≤10
≤10
≤10
≤10
9
Water,%
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
10
Sulphated ash,%
≤0.1
≤0.1
≤0.1
≤0.1
≤0.1
11
Assay,as Nitrogen content,%
11.5-12.8
11.5-12.8
11.5-12.8
11.5-12.8
11.5-12.8


Packaging and Storage
--Packed in 25kg/ drum, inner lined with PE bags;
--Stored in dry place at room temperature;


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PVP(product:polyvinylpyrrolidonepovidone iodine)、 浙ICP备10031912号
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