Butyl Acrylate
n-Butyl Acrylate, BA, Acrylic acid butyl ester.
- CAS
- 141-32-2
- EC
- 205-480-7
- Sectors
- Coatings, Adhesives, Sealants & Elastomers, Building & Construction, Textiles, Leather & Paper
Butyl Acrylate (CAS 141-32-2) is a clear, colorless acrylic monomer liquid, the butyl ester of acrylic acid, supplied at a minimum purity of 99.5% and typically stabilized with hydroquinone monomethyl ether (MEHQ), and it is used to produce acrylic resins and emulsion polymers for coatings, adhesives, and sealants. It features a 99.5% minimum purity level, ensuring consistent polymerization rates and high-quality end-product clarity.
As a versatile building block, it provides excellent flexibility and weather resistance to coatings, adhesives, and sealant formulations. It is typically supplied with hydroquinone monomethyl ether (MEHQ) as a stabilizer to prevent premature polymerization during transport.
This chemical is valued for its low-temperature performance and superior adhesion to diverse substrates, including plastics and metals. It serves as a key raw material in the CASE (Coatings, Adhesives, Sealants, Elastomers) sector for modern industrial applications.
Typical Properties
| Molecular formula | C7H12O2 |
|---|---|
| Molecular weight | 128.17 g/mol |
| Appearance | colourless liquid |
| Form | Liquid |
| Color | Clear Colorless |
| Odor | Fruity |
| Melting point | -64.6 °C |
| Boiling point | 145-149 °C |
| Density | 0.8898 g/cm³ @ Temp: 20 °C |
| Water solubility | 1.4 g/L (20 °C) |
| Flash point | 63 °F |
| GHS signal word | Danger · Flammable, Acute toxicity, Irritant / harmful, Health hazard |
| HS code | 29161230 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Butyl Acrylate
Applications
- Acrylic Emulsions: Primary component in water-based architectural paints for improved scrub resistance and gloss retention.
- Pressure Sensitive Adhesives (PSA): Used to formulate high-tack tapes and labels requiring permanent bond strength and flexibility.
- Textile Finishing: Applied in fabric binders and leather coatings to enhance durability, water resistance, and soft-hand feel.
Safety & Risks
Classified as a Flammable Liquid and Skin Sensitizer. Highly irritating to eyes and respiratory system; mandate the use of chemical-resistant gloves, organic vapor respirators, and splash goggles.
Packaging
180 kg Steel Drums, 900 kg IBC Tanks, or bulk Isotanks.