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| Feature | Good stability |
| Classification | Paint Additives |
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CAS Number: 9002-89-5
Polyvinyl alcohol (PVA), a white/yellowish granule or powder, is a stable, non-toxic, and water-soluble polymer. PVA possesses good film-forming property, and the film formed from it has excellent adhesion, solvent-resistance, abrasion-resistance, high tensile strength, and great oxygen barrier property. Due to PVA possesses both hydrophilic and hydrophobic functional groups, it can act as surfactant, and can be used as a protective colloid in polymer emulsification and suspension polymerization.
| Name | Poly(vinyl alcohol) |
| Synonyms | PVA MOWIOL 4-88 Polyvinyl alcohol Poly(vinyl alcohol) POLYVINYLIC ALCOHOL Polyvinyl alcohol film POLYVINYL ALCOHOL 2000 polyvinyl alcohol 3-98 poly(1-hydroxyethylene) polyvinyl alcohol 49000 polyvinyl alcohol 72000 polyvinyl alcohol 18-88 polyvinyl alcohol 15000 polyvinyl alcohol 22000 POLYVINYL ALCOHOL (PVA) polyvinyl alcohol 28-99 polyvinyl alcohol 100000 Polyvinyl alcohol 1750±50 Vinyl alcohol – polymerised Polyvinyl alcohol (Release agent) polyvinyl alcohol standard 200000 |
| CAS | 9002-89-5 |
| EINECS | 209-183-3 |
| Molecular Formula | C2H4O |
| Molar Mass | 44.05256 |
| Density | 1.080 g/cm3 |
| Melting Point | >300°C |
| Boling Point | -14.5°C (rough estimate) |
| Flash Point | 79°C |
| Water Solubility | soluble in hot water |
| Solubility | H2O: soluble (hot) |
| Appearance | White or milky white solid |
| Color | White to cream |
| Merck | 14,7585 |
| PH | 3.5-7.0 (40g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Combustible. Dust may form explosive mixtures with air. Incompatible with strong oxidizing agents. |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.3810 (estimate) |
| MDL | MFCD00081922 |
| Physical and Chemical Properties | White to cream-colored granules or powder |
| Use | Used as warp size, emulsion stabilizer, rewet adhesive, water-soluble film, etc |
| Hazard Symbols | Xn – Harmful |
| Risk Codes | R23/24/25 – Toxic by inhalation, in contact with skin and if swallowed. R36/38 – Irritating to eyes and skin. R39/23/24/25 – R68/20/21/22 – R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 – Wear suitable protective clothing and gloves. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24/25 – Avoid contact with skin and eyes. |
| WGK Germany | 1 |
| RTECS | TR8100000 |
| TSCA | Yes |
| HS Code | 39053000 |
| Toxicity | LD50 orally in Rabbit: > 20000 mg/kg |
| Raw Materials | Acetic acid Methyl alcohol Methyl alcohol 2,2′-Azobis(2-methylpropionitrile) 2,2′-Azobis(2-methylpropionitrile) acetylene n-Propyl acetate n-Propyl acetate |
| Downstream Products | Poly(vinyl acetate) |
| Item | Description |
| Name | Polyvinyl Alcohol (PVA) |
| Chemical Formula | (C₂H₄O)n |
| Appearance | White powder or colorless film |
| Solubility | Soluble in water, insoluble in organic solvents such as acetone and toluene |
| Molecular Weight | Varies based on degree of polymerization; typically ranges from 30.000 to 100.000 g/mol |
| Melting Point | Around 225-235°C (decomposes before melting) |
| Density | Approximately 1.19-1.31 g/cm³ |
| Functionality | Highly versatile polymer used in various industries due to its adhesive, film-forming, and emulsifying properties |
| Production Method | Produced through the hydrolysis of polyvinyl acetate under controlled conditions |
| Degree of Hydrolysis | Typically ranges from 80% to 99.9%, affecting properties like water solubility and crystallinity |
| Applications | Used in textile sizing, paper coating, adhesives, films for packaging, and as a dispersant in ceramic processing |
| Environmental Properties | Biodegradable under certain conditions; often preferred over non-biodegradable alternatives |
| Safety | Generally recognized as safe (GRAS) by FDA for specific applications; low toxicity |
| Advantages | Excellent film-forming ability, good tensile strength, high oxygen barrier property, and eco-friendly nature |
| Disadvantages | Limited solvent resistance, sensitive to moisture, and requires careful handling during storage to prevent degradation |
| Key Manufacturers | Companies like Kuraray, Celanese, and Shin-Etsu are leading producers globally |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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