Olefin 3 : An alkene. An organic compound similar to an alkane, but containing at least one double bond. Olefins have the formula CnH2n. The simplest olefin is ethylene, C2H4
Basic Tools & Resources for Fire Investigation, Appendix B (Glossary of Forensic Science Terms), "Glossary of Terms Related To Chemical and Instrumental Analysis of Fire Debris," Fire and Arson Investigator, Vol. 40, No. 2, (pp. 25-34), International Association of Arson Investigation Forensic Science Committee 1989. https://books.google.com.kw/books?id=lrKLfHr0g3QC& amp;pg=PA37&lpg=PA37&dq=Glossary+of+Terms+ Related+To+Chemical+and+Instrumental+Analysis+of+F ire+Debris&source=bl&ots=zLH7mJAEcF&si g=MBOpCLmRwtq-KeVbkpdiGyrAZF8&hl=en&sa=X&a mp;ved=0CBwQ6AEwAGoVChMIjOrmn5LqxgIVBKdyCh2ZiAWq#v =onepage&q=Glossary%20of%20Terms%20Related%20T o%20Chemical%20and%20Instrumental%20Analysis%20of% 20Fire%20Debris&f=false, (FrInv - Brit) {13}