Flash Point of Common Esters
The flash point of esters is the minimum temperature at which their vapor can ignite when in contact with an open flame or other ignition source. The flash point of an ester can vary based on its molecular structure, but generally, esters have lower flash points than some other chemical compounds.
The following table provides a comprehensive list of flash point values for common esters at 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)
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| Methyl acetate (C3H6O2) | -10 (cc) |
| Ethyl acetate (C4H8O2) | -4 (cc) |
| Butyl acetate (C6H12O2) | 22 (cc) |
| Isopropyl acetate (C5H10O2) | 2 (cc) |
| Propyl acetate (C5H10O2) | 13 (cc) |
| Ethyl butyrate (C6H12O2) | 24 (cc) |
| Methyl propionate (C4H8O2) | -2 (cc) |
| Ethyl propionate (C5H10O2) | 12 (cc) |
| Isobutyl acetate (C6H12O2) | 18 (cc) |
| Butyl butyrate (C8H16O2) | 53 (cc) |
| Ethyl formate (C3H6O2) | -20 (cc) |
| Butyl formate (C5H10O2) | 18 (cc) |
| Methyl butyrate (C5H10O2) | 14 (cc) |
| Ethyl isobutyrate (C6H12O2) | < 158 (cc) |
| Methyl valerate (C6H12O2) | 22 (cc) |
| Methyl hexanoate (C7H14O2) | 73 (cc) |
| Isopropyl hexanoate (C9H18O2) | 54 (cc) |
| Ethyl octanoate (C10H20O2) | 79 (cc) |
| Methyl benzoate (C8H8O2) | 83 (cc) |
| Butyl benzoate (C11H14O2) | 107 (oc) |
cc = closed cup, oc = opened cup
Related Tables
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) Occupational Safety and Health Administration (OSHA): The National Institute for Occupational Safety and Health (NIOSH). 5) Fire Protection Guide to Hazardous Materials, 14th Edition. United States: National Fire Protection Association, 2010.