A toxic compound (CH2CH CHO) formed during the combustion of petroleum products that has a flash point below 00F, an ignition temperature of 4280F and an explosive range of 2. 81 to 31 percent
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}