Properties of Acrylonitrile (C3H3N)
Acrylonitrile is a colorless, flammable liquid compound with a chemical formula of C3H3N. It is an important industrial chemical primarily used in the production of synthetic polymers, including acrylic fibers and resins, as well as in the manufacture of plastics like acrylonitrile-butadiene-styrene (ABS).
The following table provides a comprehensive list of acrylonitrile properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Molar Mass | 53.064 g/mol |
| Density | 806 kg/m3 |
| Dynamic Viscosity | 0.346 mPa·s |
| Surface Tension | 29.58 mN/m |
| Thermal Properties | Metric |
| Melting Point | -84 °C |
| Boiling Point | 77 °C |
| Thermal Conductivity | 0.169 W/m·K |
| Vapor Pressure | 11 kPa |
| Critical Constants | Metric |
| Critical Temperature (Tc) | 267 °C |
| Critical Pressure (Pc) | 4.6 MPa |
| Critical Molar Volume (Vc) | 210 cm3/mol |
| Electrical Properties | Metric |
| Relative Permittivity (εr) | 33 |
| Optical Properties | Metric |
| Refractive Index (589 nm) | 1.388 |
| Hazardous Data | Metric |
| Flash Point | 0 °C |
| Autoignition Temperature | 481 °C |
| Lower Flammability Limit | 3% |
| Upper Flammability Limit | 17% |
| NFPA Rating (Health) | 4 |
| NFPA Rating (Fire) | 3 |
| NFPA Rating (Reactivity) | 2 |
Unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. Netherlands: Elsevier Science, 2015. 4) Fire Protection Guide to Hazardous Materials, 14th Edition. United States: National Fire Protection Association, 2010.