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2-BUTENE

2-BUTENE
2-BUTENE structure
CAS No.
624-64-6
Chemical Name:
2-BUTENE
Synonyms
2-BUTENE;(E)-2-C4H8;t-butene-2;2-BUTYLENE;TR-2-BUTENE;(E)-2-Butene;trans-Butene;2-Butene,(E)-;(E)-But-2-ene;2-trans-Butene
CBNumber:
CB6449452
Molecular Formula:
C4H8
Formula Weight:
56.11
MOL File:
624-64-6.mol

2-BUTENE Properties

Melting point:
−140 °C(lit.)
Boiling point:
1 °C(lit.)
Density 
0.5990
vapor density 
2 (vs air)
vapor pressure 
2575 mm Hg ( 37.7 °C)
refractive index 
1.3932
Flash point:
<−30 °F
explosive limit
9.7%
Merck 
1520
BRN 
1718756
Stability:
Stable. Incompatible with strong oxidizing agents, peroxides, peroxyacids, aluminium tetrahydroborate. Extremely flammable.
InChIKey
IAQRGUVFOMOMEM-ONEGZZNKSA-N
CAS DataBase Reference
624-64-6(CAS DataBase Reference)
FDA UNII
017NGL487F
EPA Substance Registry System
trans-2-Butene (624-64-6)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02
Signal word  Danger
Hazard statements  H220-H280
Precautionary statements  P210-P410+P403
Hazard Codes  F,F+
Risk Statements  12-11
Safety Statements  9-16-33-38
RIDADR  UN 1012 2.1
WGK Germany  3
RTECS  EM2932000
Autoignition Temperature 615 °F
DOT Classification 2.1 (Flammable gas)
HazardClass  2.1
NFPA 704
4
1 0

2-BUTENE price More Price(2)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 295086 trans-2-Butene ≥99% 624-64-6 50g $314 2021-03-22 Buy
Sigma-Aldrich 295086 trans-2-Butene ≥99% 624-64-6 200g $1190 2021-03-22 Buy

2-BUTENE Chemical Properties,Uses,Production

Chemical Properties

colourless gas

Chemical Properties

2-Butene, C4H8, can occur in trans or cis conformation; the former is the more stable form. It is a colorless, extremely flammable gas. 2-Butene occurs in coal gas and has been detected in diesel exhaust. The more highly reactive trans-2-butene occurs at much lower concentrations in the atmosphere than other comparable hydrocarbons.

Production Methods

2-Butene has been recovered from refining gases or produced by petroleum cracking. It is a component in the production of gasolines, butadiene, and a variety of other chemicals.

General Description

A colorless liquefied petroleum gas. An asphyxiant. Flammability limits of 1.8-9% by volume.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

The unsaturated aliphatic hydrocarbons, such as 2-BUTENE, are generally much more reactive than the alkanes. Strong oxidizers may react vigorously with them. Reducing agents can react exothermically to release gaseous hydrogen. In the presence of various catalysts (such as acids) or initiators, compounds in this class can undergo very exothermic addition polymerization reactions. Aluminum borohydride reacts with alkenes and in the presence of oxygen, combustion is initiated even in the absence of moisture.

Purification Methods

The gas is dried with CaH2 and purified by gas chromatography. [Beilstein 1 H 205, 1 II 176, 1 III 730, 1 IV 781.] HIGHLY FLAMMABLE.

2-BUTENE Preparation Products And Raw materials

Raw materials

Preparation Products


2-BUTENE Suppliers

Global( 46)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
13203830695 0086-371-86658258
0086-371-86658258 factory@coreychem.com CHINA 29864 58
Dayang Chem (Hangzhou) Co.,Ltd.
17705817739 +86-571-88938639
+86-571-88938652,+86-571- 88492614 info@dycnchem.com CHINA 52932 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 sale@mainchem.com CHINA 32439 55
Shanghai wechem chemical co., ltd 15901947671 021-51987501-
021-6192 7501 alisa@wechem.cn;leon@wechem.cn China 123 58
Wuhan eastop Technology Co., ltd.6 18086641195 027-87382885-
027-87382885 nancy@isotopechina.com;963808242@qq.com China 153 58
Central China Special Gas (CCSG) Co., Ltd 15674722888 0734-8755555-
0734-8123618 lyq@ccsg.cn China 285 58
J & K SCIENTIFIC LTD. 400-666-7788 010-82848833-
86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 400-660-8290 21-61259100-
86-21-61259102 sh@meryer.com China 40264 62
Energy Chemical 400-005-6266 021-58432009-
021-58436166 sales8178@energy-chemical.com China 43503 61

View Lastest Price from 2-BUTENE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-02-19 2-BUTENE
624-64-6
US $7.00 / KG 1KG 99% 100kg Career Henan Chemical Co

2-BUTENE Spectrum


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