China wholesale Uv Absorber 234 - PVP Poly(1-vinylpyrrolidone-co-vinyl acetate) CAS 25086-89-9 – Unilong
China wholesale Uv Absorber 234 - PVP Poly(1-vinylpyrrolidone-co-vinyl acetate) CAS 25086-89-9 – Unilong Detail:
Quick details
Product Name: Poly(1-vinylpyrrolidone-co-vinyl acetate)
CAS: 25086-89-9
MF: C10H15NO3
MW: 197.23
EINECS:
Mol File: 25086-89-9.mol
density 1.27 g/mL at 25 °C(lit.)
refractive index 1.4300 to 1.4380
Fp 72 °F
form powder
color White
Stability: Stable. Combustible, especially in powdered form. Incompatible with strong oxidising agents, strong reducing agents.
Description
| Item | Standard | Result |
| K value | 25-36 | 30.21 |
| Aldehyde % | ≤0.05 | 0.5 |
| Peroxide ppm | ≤400 | 232 |
| Hydrazine ppm | ≤ 1 | ＜1 |
| N-vinylpyrrolidone % | ≤0.1 | ＜0.1 |
| Impurity A(2-Pyrrolidinone) % | ≤0.5 | ＜0.5 |
| Heavy metal ppm | ≤20 | ＜20 |
| Moisture % | ≤5.0 | 2.89 |
| Residue on Ignition % | ≤0.1% | 0.073 |
| Ethenyl Acetate % | 35.3-42 | 38.96 |
| Nitrogen % | 7.0-8.0 | 7.5 |
Application
Copovidone is a water-soluble polymer used to improve the uptake and drug loading of various pharmaceutical agents, including contraceptive patches.
Poly(1-vinylpyrrolidone-co-vinyl acetate) is the main raw materials of cosmetics are used for hair gel, mousse, shampoo, etc., as well as surfactants, pharmaceuticals and other industrial purposes. They are mainly used as water-soluble adhesives and dry adhesives in granulation and direct tabletting technology, as film-forming materials in film coating, and as pore forming substances in masking agents. It is used for sugar coating to prevent cracking. The chemicalbook bottom coating is used for moisture-proof purposes. Vp/va copolymer series products are mainly used as film-forming agents and styling agents in the field of cosmetics, especially in erupting agents, hair gels, mousse and shampoo series products. They play an important role as film-forming agent and hair styling agent. If they are used together with pvpk30, their use effect will be enhanced.
The appearance is white powder or colorless liquid. The regular type is PVP-64.
Package
25kg/drum
Product detail pictures:
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By Mildred from Nepal - 2018.06.30 17:29
The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
By Yannick Vergoz from Dominica - 2017.09.09 10:18
