Product Description of Butyl acrylate CAS#141-32-2
Butyl acrylate (C₇H₁₂O₂), alternatively named n-butyl acrylate, is a reactive acrylic monomer that promotes copolymerization and improves polymer toughness and adhesion. Beyond resin synthesis, it is also extensively applied in coatings, adhesives, textiles, leather finishing and industrial additive production.
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Chemical Properties of Butyl acrylate CAS#141-32-2
| Melting point | -64.6 °C ~ -69 °C |
| Boiling point | 145~148 °C（1013 hPa） |
| Density | 0.894~0.90 g/cm³ at 20 °C |
| vapor density | >1 (vs air)，about 4.4 |
| vapor pressure | 3.3 mmHg（20 °C）；5.48 mmHg（25 °C）；29 hPa（50 °C） |
| Refractive index | n₂₀/D 1.417~1.419 |
| Fp | 38~39 °C（Closed-cup） |
| storage temp. | 2~30 °C，Recommended storage: 5–25°C, protected from light. |
| solubility | Miscible with most organic solvents, such as ethanol, diethyl ether, and acetone. |
| Physical Form | Liquid（Liquid） |
| Color | Clear Colorless |
| Odor | Fruity/Sharp characteristic odor（Fruity/pungent characteristic odor） |
| Odor Threshold | 0.00055 ppm |
| explosive limit | 1.1~7.8 %（v/v） |
| Water Solubility | 1.4~1.7 g/L（20 °C） |
| Specific Heat Capacity | 1.96 kJ/kg·°C（Liquid，25℃） |
| Merck | 14, 1539 |
| BRN | 1749970 |
| Exposure limits | TLV-TWA 10 ppm（~55 mg/m³）；EU LTEL 2 ppm（11 mg/m³）、EU STEL 10 ppm（53 mg/m³） |
| CAS DataBase Reference | 141-32-2（CAS DataBase Reference） |
Safety Information of Butyl acrylate CAS#141-32-2
| Hazard Codes | F,Xn,Xi |
| Risk Statements | 11-20/21/22-37/38-43-52/53-36/37/38-10 |
| Safety Statements | 16-25-37-61-9-36/37-26 |
| OEB | A |
| OEL | TWA: 10 ppm (55 mg/m3) |
| RIDADR | UN 2348 (BUTYL ACRYLATES, STABILIZED) |
| WGK Germany | 2 |
| RTECS | UD3150000 |
| F | 10 |
| Autoignition Temperature | 559 °F |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29161230 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Acute Tox. 4 Dermal Acute Tox. 4 Inhalation Aquatic Chronic 3 Eye Irrit. 2 Flam. Liq. 3 Skin Irrit. 2 Skin Sens. 1 STOT SE 3 |
| Hazardous Substances Data | 141-32-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 3.73 g/kg (Smyth) |
| IDLH | 113 ppm |
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Product Application of Butyl acrylate CAS#141-32-2
Butyl acrylate is a high-activity industrial monomer that improves film flexibility and bonding strength in polymer formulations, with its modification effectiveness depending on the monomer ratio and pH of the formulation system.
In industrial applications, butyl acrylate can be used as a core modifying monomer in emulsions, adhesives, and various coating formulations. It is mainly produced through standardized synthetic industrial processes.
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