1,2-Butadiene

Buta-1,2-dien.svg 1,2-Butadiene-3D-balls.png Buta-1,2-diene Methyl allene 590-19-2 11535 209-674-2 2AZI943A8R 39480 1144 1730808 11051 1S/C4H6/c1-3-4-2/h4H,1H2,2H3 QNRMTGGDHLBXQZ-UHFFFAOYSA-N CC=C=C 4 6 10.9 −136.2 0.676 at 4 °C 1.4205 at 1 °C 23.426 kJ/mol Frostbite, flammable −75 02 09 Danger 220 224 411 210 233 240 241 242 243 273 280 303+361+353 370+378 377 381 391 403 403+235 410+403 501 1,2-Butadiene is the organic compound with the formula CH2=C=CHCH3. It is an isomer of 1,3-butadiene, which is a common monomer used to make synthetic rubber, and is often co-produced with it. It is a colorless flammable gas, one of the simplest substituted allenes.https://www.exxonmobilchemical.com/dfsmedia/f743208d804841f6ab89a60202cc3f56/2031-source?extension=pdf/options/download March 2016 ExxonMobil Product Safety Summary 1,2-BUTADIENE https://web.archive.org/web/20231124172306/https://www.exxonmobilchemical.com/dfsmedia/f743208d804841f6ab89a60202cc3f56/2031-source?extension=pdf/options/download 2023-11-24 dead Production The C4-fraction of petroleum obtained by cracking and separated by distillation consists of many compounds, predominantly (75%) 1,3-butadiene, isobutene, and 1-butene. 1,2Butadiene comprises less than 1% of this mixture.Butadiene J. Grub E. Löser 2012 10.1002/14356007.a04_431.pub2 It is partially purified by extraction with N-methylpyrrolidone. 1,2-Butadiene has no commercial applications;Intratec Butadiene Production from Butenes https://cdn.intratec.us/docs/reports/previews/butadiene-e21a-b.pdf live https://web.archive.org/web/20230517070503/https://cdn.intratec.us/docs/reports/previews/butadiene-e21a-b.pdf 17 May 2023 2 Oct 2026 "1,2-Butadiene, the other isomeric form of Butadiene, has no significant commercial applications. It is usually a by-product from 1,3-Butadiene production." US production was 4,500–23,000 tons in 2005.October 2026 References Category:Alkadienes Category:Cumulated dienes