295329

Ethylene

≥99.5%

• Synonym(s): Ethene
• Linear Formula: CH₂=CH₂
• CAS Number: 74-85-1
• Molecular Weight: 28.05
• Beilstein: 1730731
• EC Number: 200-815-3
• MDL number: MFCD00008604
• UNSPSC Code: 12142100
• PubChem Substance ID: 24857774
• NACRES: NA.22

Properties

• vapor density: 0.97 (vs air)
• Quality Level: 100
• vapor pressure: 35.04 atm ( 20 °C)
• Assay: ≥99.5%
• autoignition temp.: 842 °F
• expl. lim.: 36 %
• bp: −104 °C (lit.)
• mp: −169 °C (lit.)
• SMILES string: C=C
• InChI: 1S/C2H4/c1-2/h1-2H2
• InChI key: VGGSQFUCUMXWEO-UHFFFAOYSA-N

Description

General description

Ethylene is an alkene used in Friedel-Crafts alkylation, cycloaddition, electrophilic addition, and vinylation reactions.

Application

Ethylene is mainly used as a precursor to synthesize polyethylene, ethylbenzene and ethylene dichloride. It is also used in the preparation of single- layer graphene by thermal chemical vapor deposition.

Packaging

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:

• Aldrich^® lecture-bottle station systems
• Aldrich^® lecture-bottle gas regulators

Other Notes

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Legal Information

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

Safety Information

• Pictograms: GHS02,GHS04,GHS07
• Signal Word: Danger
• Hazard Statements: H220,H280,H336
• Precautionary Statements: P261 - P271 - P304 + P340 + P312 - P403 + P233 - P405 - P410 + P403
• Hazard Classifications: Flam. Gas 1 - Press. Gas Liquefied gas - STOT SE 3
• Target Organs: Central nervous system
• Storage Class Code: 2A - Gases
• WGK: nwg
• Flash Point(F): -148.0 °F - closed cup
• Flash Point(C): -100 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves