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Polyvinyl alcohol PVA CAS 9002-89-5 Cheap price
CAS NO.
9002-89-5Name
Polyvinyl alcohol PVA Molecular Formula
C2H4O Molecular Weight
44.05256EINECS Number
209-183-3Warranty Period
1 yearDescription
Polyvinyl alcohol is a solid that can be in the form of white powder, flakes or flocs. The glass transition temperature is 60-85°C. Polyvinyl alcohol contains many alcohol groups, is polar, and can form hydrogen bonds with water, so it can be dissolved in polar water. Polyvinyl alcohol is also soluble in hot hydroxyl-containing solvents such as glycerin, phenol, etc., but insoluble in general organic solvents such as methanol, benzene, acetone, gasoline, etc.
ULI-ECO provides pharmaceutical-grade polyvinyl alcohol, which is different from chemical-grade polyvinyl alcohol. It is an extremely safe high-molecular organic substance, which is non-toxic to the human body, has no side effects, and has good biocompatibility. Especially in medical treatment, for example, its water-based gel is widely used in ophthalmology, wound dressing and artificial joints. At the same time, polyvinyl alcohol film is also used in medical membranes, artificial kidney membranes, etc.
Its safety can be seen from its use in wound skin repair and eye drop products. Some of these models are also often used in facial masks, cleansing creams, lotions and emulsions in cosmetics, and are a commonly used safe film-forming agent.
Information
| Item | Standard |
| Appearance | Almost White powder |
| Viscosity(Pa.s) | 44.0-56.0 |
| Volatile(%) | ≤7.0 |
| Hydrolysis(Mol%) | 86.0-90.0 |
| Ash(%) | ≤0.5 |
| Purity(%) | ≥91.5 |
| PH | 5-7 |
1. Polyvinyl alcohol can be used in textile pulp, Pooh fiber, coating agent for papermaking, building materials, adhesives, PVA film, PVB raw materials, food and medicine, etc. PVA can also be used as soil modifier and polymerization suspending agent And emulsifier, quenching agent, etc.
2. Used in the manufacture of polyvinyl acetal, gasoline-resistant pipes and vinylon, fabric treatment agents, emulsifiers, paper coatings, adhesives, etc.
Polyvinyl alcohol resin (PVA) aqueous solution has good film-forming and emulsifying properties. It can be used as a protective colloid for polymer emulsification and suspension polymerization
Polyvinyl alcohol resin (PVA) is soluble in water (above 95°C), slightly soluble in dimethyl sulfoxide, insoluble in gasoline, kerosene, vegetable oil, benzene.
25kgs/drum, 9tons/20’container
25kgs/bag, 20tons/20’container
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