295086

trans-2-Butene

≥99%

• Synonym(s): β-trans-Butylene, (2E)-2-Butene, (E)-2-Butene, 2-trans-Butene, 2-trans-Butylene, E-Butene, trans-1,2-Dimethylethylene, trans-2-Butylene, trans-Butene
• Linear Formula: CH₃CH=CHCH₃
• CAS Number: 624-64-6
• Molecular Weight: 56.11
• Beilstein: 1718756
• EC Number: 210-855-3
• MDL number: MFCD00064458
• UNSPSC Code: 12142100
• PubChem Substance ID: 24857756
• NACRES: NA.22

Properties

• vapor density: 2 (vs air)
• Quality Level: 100
• vapor pressure: 2575 mmHg ( 37.7 °C)
• Assay: ≥99%
• autoignition temp.: 615 °F
• expl. lim.: 9.7 %
• bp: 1 °C (lit.)
• mp: −105 °C (lit.)
• SMILES string: CC=CC
• InChI: 1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3+
• InChI key: IAQRGUVFOMOMEM-ONEGZZNKSA-N

Description

Application

trans-2-Butene can be used as a monomer unit to produce high molecular weight polyolefins with well-defined microstructures by nickle-catalyzed polymerization reaction. It is also used as a reactant in the isomerization reaction to produce the corresponding isomer using acid-activated catalysts.

Packaging

Supplied in a Sure/Pac^™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Brass hose adapter Z146811
• Aldrich^® mini gas regulator Z513539

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

ISOGRO is a registered trademark of Merck KGaA, Darmstadt, Germany

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Pictograms: GHS02,GHS04
• Signal Word: Danger
• Hazard Statements: H220,H280
• Precautionary Statements: P410 + P403
• Hazard Classifications: Flam. Gas 1 - Press. Gas Liquefied gas
• Storage Class Code: 2A - Gases
• WGK: WGK 3
• Flash Point(F): -4.0 °F - closed cup
• Flash Point(C): -20 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves