- Pharmaceutical[10]
- Medical Consumables[3]
- Organic Intermediate[8]
- Polymer[10]
- Food Additives[5]
- Chemical Auxiliary Agent[6]
- Daily Chemicals[10]
- Chemical Reagents[10]
- Other Chemicals[3]
- Diapers/Nappies[1]
- Agrochemicals & Pesticides[1]
- Contact Person : Ms. Guo Angela
- Company Name : Shanghai Yuking Chemtech Co., Ltd.
- Tel : 86-21-68286299
- Fax : 86-21-68286226
- Address : Shanghai,Shanghai,Room 309, Building 1, No.88, Darwin Road, Zhangjiang Hi-Tech Park, Shanghai
- Country/Region : China
- Zip : 201203
PVPVA73 50%W
Product Introduction
Different proportion of Vinylpyrrolidone to vinylacetate can be offered in powder, alcohol solution and aqueous solution products. The aqueous solution product may be varied from transparent to cloudy. The clarity of the solution depends on the proportion of Vinylpyrrolidone to vinylacetate. The solution is slight acidic but not electrolytic.
Specification(Liquid)
Product Name | VA64W | VA64E | VA37E | VA37I | VA55E | VA55I | VA73W/E |
Appearance | Colorless, Viscous Liquid | ||||||
K Value | 30-36 | 30-36 | 24-32 | 24-32 | 24-32 | 24-32 | 28-38 |
N-Vinylpyrrolidone max% | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
Solid Assay % | 48-52 | 48-52 | 48-52 | 48-52 | 48-52 | 48-52 | 48-52 |
PH(5% solution) | -- | -- | -- | -- | -- | -- | -- |
VAc max% | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
VP/VA | 60/40 | 60/40 | 30/70 | 30/70 | 50/50 | 50/50 | 70/30 |
Specification(Powder) USP/BP/EP
Product Name | K Value | Nitrogen % | (VP+Vc)% | Loss on drying % |
VA64 Powder | 25.2-30.8 | 7.0-8.0 | max0.4 | max5.0 |
Heavy metals ppm | Aldehydes ppm | Peroxide ppm | Hydrazine ppm | α-p % |
max20 | max500 | max400 | max1 | max0.5 |
Packing and Storage
Liquid is packed in 50kg/plastic drum or 1MT/IBC drum; solid is packed in 25kg/fiber drum.
Application
Pharmaceuticals: It is mainly used as water soluble and drying adhesive agent when making grain and pressing tablet directly. It will be used in film coating and cover-taste agent. It can prevent sugar coating from split and make bottom coating avoid dampness.
Cosmetics: PVP/VA Series play a good role in film-former and hair-fixing agent. Its hygroscopicity decreases with the increase of the proportion of vinylacetate in the molecular. This property of PVP/VA is extremely useful as it works in hair sprays and hair-set lotion. If it is mixed with PVP K-30, the effect of hair-fixing would be changed a lot.
Other Utility: PVP/VA series can be used in remoistenable adhesive and other adhesives for paper or viscosity-enchancing agent and protecting colloid for printing ink. PVP/VA 64 series can also act as emulsifying agent, protecting colloid for planting-protecting chemicals, other dispersing systems and binder in coating.
PVPVA73 50%W
