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|Place of Origin:||China|
|Model Number:||C4H8 CIS - 2 - Butene|
|Minimum Order Quantity:||50 pcs|
|Packaging Details:||40Ltr Cylinder|
|Delivery Time:||15-30 working days after receipt of deposit|
|Payment Terms:||L/C, D/A, D/P, T/T, Western Union|
|Supply Ability:||10000pcs per week|
|CAS No.:||590-18-1||EINECS No.:||209-673-7|
|Dot Class:||2.1||Appearance:||Colorless,flammable And Liquefied Gas With A Detectable Odor|
flammable hydrocarbon gas,
hydrocarbon gas mixture
Hydrocarbon Gases C4H8 CIS - 2 - Butene with Industrial Grade 99.9% Purity
2-Butene is an acyclic alkene with four carbon atoms. It is the simplest alkene exhibiting cis/trans-isomerism (also known as (E/Z)-isomerism); that is, it exists as two geometric isomers cis-2-butene ((Z)-2-butene) and trans-2-butene ((E)-2-butene).
It is a petrochemical, produced by the catalytic cracking of crude oil or the dimerization of ethylene. Its main uses are in the production of gasoline (petrol) and butadiene, although some 2-butene is also used to produce the solvent butanone via hydration to 2-butanol followed by oxidation.
The two isomers are extremely difficult to separate by distillation because of the proximity of their boiling points (~4 °C for cis and ~1 °C for trans). However, separation is unnecessary in most industrial settings, as both isomers behave similarly in most of the desired reactions. A typical industrial 2-butene mixture is 70% (Z)-2-butene (cis-isomer) and 30% (E)-2-butene (trans-isomer). Butaneand 1-butene are common impurities, present at 1% or more in industrial mixtures, which also contain smaller amounts of isobutene, butadiene and butyne.
CAS No.: 590-18-1
EINECS No.: 209-673-7
UN No.: UN1075
Dot Class: 2.1
Appearance: Colorless,flammable and liquefied gas with a detectable odor.
Grade Standard: Industrial Grade
|1,2 Butadiene||≤ 100 ppm|
|1-Butyne||≤ 100 ppm|
|Water||≤ 1 ppm|
|Sulfur||≤ 0.5 ppm|
① In halogenation and alkylation processes
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