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 PVP-K
Homopolymer Series |
| CTFA Nomenclature : |
Polyvinylpyrrolidone (Abbreviated to
be
PVP) |
| CAS Number : |
9003-39-8 |
| Chemical Structure:
|
| Homopolymer of Vinylpyrrolidone |
 |
|
Physical Properties:
|
PVP exists as powder or aqueous solution.
It can dissolve in water and variety of organic solvent
.It is generally used in cosmetics , surfactants ,
pharmaceutical industry and other related industrial
fields. |
| |
| Specification: |
| Technical grade: |
|
Catalog of product
|
K value
|
Vinylpy
rrolidone%
|
Moisture%
|
Ash%
|
Solid%
|
pH
(5% in water)
|
| K30(powder) |
27-33 |
<0.2 |
<5.0 |
<0.02 |
>95 |
3-7 |
| K30(aqueous solution) |
27-33 |
<0.2 |
- |
<0.02 |
30±1 |
5-8 |
| K90(aqueous solution) |
90-103 |
<0.2 |
- |
<0.02 |
20±1 |
7-10.5 |
|
|
| Pharmaceutical grade : |
|
Specification
|
Grade
|
K Value
|
pH(10%aqueous solution)
|
N-vinyl-2-pyrrolidone
|
a-pyrrolidone,%
|
Loss on drying,%
|
|
K17
|
USP26th /USP27th
|
16.0-18.0
|
3.0-5.0
|
<0.2%
|
---
|
<5
|
|
K17
|
USP28th/EP5.0
|
14.5-19.6
|
3.0-5.0
|
<10 ppm
|
<3
|
<5
|
|
K25
|
USP26th
|
22.5-27.0
|
3.0-5.0
|
<0.2%
|
---
|
<5
|
|
K25
|
USP28th/EP5.0
|
22.5-27.0
|
3.0-5.0
|
<10 ppm
|
<3
|
<5
|
|
K30
|
USP26th
|
27.0-32.4
|
3.0-5.0
|
<0.2%
|
---
|
<5
|
|
K30
|
USP28th/EP5.0
|
27.0-32.4
|
3.0-5.0
|
<10 ppm
|
<3
|
<5
|
|
Sulfated ash , %
|
Heavy metal, ppm
|
Nitrogencontent , %
|
aldehyde , ppm
|
Peroxide , ppm
|
Hydrazine , ppm
|
|
<0.1
|
<10
|
11.5-12.8
|
<500
|
---
|
<1
|
|
<0.1
|
<10
|
11.5-12.8
|
<500
|
<400
|
<1
|
|
<0.1
|
<10
|
11.5-12.8
|
<500
|
---
|
<1
|
|
<0.1
|
<10
|
11.5-12.8
|
<500
|
<400
|
<1
|
|
<0.1
|
<10
|
11.5-12.8
|
<500
|
---
|
<1
|
|
<0.1
|
<10
|
11.5-12.8
|
<500
|
<400
|
<1
|
|
| |
| Application: |
PVP K series can be used as film
forming agent, viscosity-enhancement agent,
lubricator and adhesive. They are the key component
of hair sprays, mousse, gels and lotions &
solution. They are also convenience assistant
in skin care product, hair-drying reagent, shampoo,
eye makeup, lipstick, deodorant, sunscreen and
dentifrice. |
| Pharmaceutical: |
Povidone K 30 and K 25 is a new and excellent
pharmaceutical excipient. It is mainly used
as binder for tablet, dissolving assistant for
injection, flow assistant for capsule, dispersant
for liquid medicine and pigment, stablizer for
enzyme and heat sensitive drug, coprecipitant
for poorly soluble drugs, lubricator and antitoxical
assistant of eye drug. PVP has been used as
excipients in more than one hundred drugs. |
| Other Utility:
|
♦
|
Suspensant,
disperser and emulsifier |
♦ |
Paint and coating |
| ♦ |
Plastics and resin |
♦ |
Adhesive |
| ♦ |
Glass fiber |
♦ |
Film |
| ♦ |
Ink |
♦ |
TV tube |
| ♦ |
Detergent |
♦ |
Tabletting |
♦
|
Textile dying and printing
|
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