Product Description of Poly(vinyl alcohol) CAS#9002-89-5
Polyvinyl Alcohol (PVA) is a solid polymer commonly available in the form of a white powder, flakes, or flocculent particles. It has a glass transition temperature of approximately 60–85°C. Due to its abundant hydroxyl groups and highly polar structure, PVA readily forms hydrogen bonds with water and is soluble in polar aqueous media. It can also dissolve in hot hydroxyl-containing solvents, such as glycerol and phenol, while showing limited solubility or insolubility in many common organic solvents, including methanol, benzene, acetone, and gasoline.
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Chemical Properties of Poly(vinyl alcohol) CAS#9002-89-5
| Melting point | >300 °C |
| Boiling point | -14.5°C (rough estimate) |
| density | 1.080 g/cm3 |
| Tg | 73 |
| Tg | 99 |
| Tg | 99°C |
| bulk density | 400-670kg/m3 |
| refractive index | 1.3810 (estimate) |
| Fp | 79°C |
| storage temp. | Store below +30°C. |
| solubility | H2O: soluble (hot) |
| form | Powder |
| color | White to cream |
| Odor | at 100.00?%. odorless |
| PH | 3.5-7.0 (40g/l, H2O, 20℃) |
| Water Solubility | soluble in hot water |
| Merck | 14,7585 |
| Dielectric constant | 1.9（Ambient） |
| Stability: | Stable. Combustible. Dust may form explosive mixtures with air. Incompatible with strong oxidizing agents. |
| NIST Chemistry Reference | Polyvinyl alcohol(9002-89-5) |
| IARC | 3 (Vol. 19, Sup 7) 1987 |
| EPA Substance Registry System | Polyvinyl alcohol (9002-89-5) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 23/24/25-36/38-39/23/24/25-68/20/21/22-20/21/22 |
| Safety Statements | 26-36/37-45-24/25 |
| WGK Germany | 1 |
| RTECS | TR8100000 |
| Autoignition Temperature | 450 °C |
| TSCA | Yes |
| HS Code | 39053000 |
| Hazardous Substances Data | 9002-89-5(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: > 20000 mg/kg |
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Product Application of Poly(vinyl alcohol) CAS#9002-89-5
Poly(vinyl alcohol) (PVA) is widely used in adhesives, paper coatings, textile sizing, construction materials, and water-soluble films. It is also applied in packaging, printing, ceramics, emulsifiers, and various industrial formulations due to its excellent film-forming, adhesive, and water-soluble properties.
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