Ethylene

oil

Ethylene

Ethylene, is the simplest unsaturated hydrocarbon and also is the first member of the alkenes group. Its chemical formula is C2H4 and there are double bond between two carbon atoms.

 Isomer Ethylene C2H4 isn't formulated, that is the two halves of the molecule can't change their formation with rotate around a double bond.

Ethylene has a flat structure, the angle between the two binding carbon - Hydrvpn is 117 ° C.

 

Ethylene

Chemical nomenclature[ Hide]

Ethene

Identifiers

CAS Reg

74-85-1 

PubChem

6325

ChemSpider

6085 

UNII

91GW059KN7 

EC-number

200-815-3

KEGG

C06547 

ChEBI

CHEBI:18153 

ChEMBL

CHEMBL117822 

Specifications

Molecular formula

C2H4

Molar mass

28.05 g/mol

Appearance

colorless gas

Density

1.178 kg/m3 at 15 °C gas[۱]

Melting point

−169.2 °C (104.0 K -272.6 °F)

Boiling point

‎−103.7 °C (169.5 K -154.7 °F)

Solubility in water

3.5 mg/100 mL (17 °C)[نیازمند منبع] ; 2.9 mg/L[۲]

Solubility inethanol

4.22 mg/L[۲]

Solubility indiethyl ether

good[۲]

Acidic (pKa)

44

Structure

Molecular shape

D2h

Dipole moment

zero

Thermochemical

 Entropy Molar
Standard  So298

219.32 J K−1·mol−1

 Standard enthalpy
Formation  ΔfHo298

+52.47 kJ/mol

Risks

Classification E U

Extremely flammable (F+)

Fire diamond

4

3

2

Flash point

-136 °C

temperature of flammability

542.8 °C

Related compounds

Related compounds

Ethan
Acetylene

Read 6223 times Last modified on Wednesday, 05 August 2015 10:03
More in this category: « Base Oil Bitumen »

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