Poly(vinyl alcohol) (PVA) is a water-soluble synthetic polymer derived from the hydrolysis of poly(vinyl acetate). It is renowned for its film-forming properties, biocompatibility, and high tensile strength. PVA is extensively used in the production of textiles, paper, and adhesives due to its excellent adhesive and emulsifying characteristics. Its water solubility and biodegradability make it a preferred material in various industrial applications, including packaging films and medical devices.
描述
Poly(vinyl alcohol) CAS#9002-89-5
| Poly(vinyl alcohol) Chemical Properties |
| Melting point | >300???C |
| Boiling point | -14.5??C (rough estimate) |
| density | 1.080 g/cm3 |
| Tg | 73 |
| Tg | 99 |
| Tg | 99??C |
| 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 |
