Poly(vinyl alcohol) CAS#9002-89-5
Versatile Physical Forms ： Available as white powder, flakes, or flocs for flexible application.
High Water Solubility ： Polar nature allows easy dissolution in water due to hydrogen bonding.
Solvent Compatibility ： Soluble in hot hydroxyl-containing solvents (e.g., glycerol, phenol).
Organic Solvent Resistance ： Insoluble in common organic solvents (e.g., methanol, benzene), ensuring stability in diverse environments.
About Poly(vinyl alcohol) (CAS 9002-89-5)
Commonly known as PVA, Poly(vinyl alcohol) is a versatile solid polymer found in powder, flake, or flocculent forms. It is distinguished by its high polarity and rich hydroxyl content, allowing it to dissolve readily in water through hydrogen bonding. With a stable glass transition temperature of 60-85°C, PVA offers reliable performance across various temperatures. While it can be processed using hot hydroxyl-based solvents like glycerol, its inherent resistance to common organic solvents like gasoline and acetone makes it an ideal choice for applications requiring specific chemical barriers.
Parameters
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 |
Poly(vinyl alcohol) (CAS 9002-89-5): Versatile Solutions for Modern Industry
As a cornerstone of 2026 industrial manufacturing, Polyvinyl alcohol (PVA) offers unmatched versatility. From providing superior strength in textile sizing and construction adhesives to serving as a critical emulsifier in complex chemical syntheses, PVA is essential for high-quality production.
Its unique properties allow for the creation of innovative products such as eco-friendly water-soluble films, high-performance soil conditioners for sustainable agriculture, and advanced medical materials. Whether used as a thickener in cosmetics or a stabilizer in paper manufacturing, our PVA ensures consistent performance and excellence across all applications.
