Ethylene [Chemical formula, Physical, Chemical Properties and Reactions]

By: Prof. Dr. Fazal Rehman | Last updated: February 3, 2024

Ethylene  have chemical formula of  C2H4.

Physical Properties ofc

Properties Details
Appearance Colorless gas
Boiling Point -103.7 °C (-154.7 °F)
Chemical Formula C2H4
Density 0.968 g/cm³ (at 25 °C)
Melting Point -169.2 °C (-272.6 °F)
Molecular Weight 28.05 g/mol
Odor Sweet, gasoline-like
Refractive Index 1.350 (at 20 °C)
Solubility Slightly soluble in water
Vapor Pressure 1526 kPa (at 20 °C)

Chemical Properties of Ethylene:

Properties Details
Acidic Character Not acidic in nature
Addition Reactions Reacts with hydrogen, halogens, and other compounds to form various products
Alkali Reaction Reacts with strong alkalis to form salts
Combustibility Highly flammable gas
Halogenation Reacts with halogens (e.g., chlorine, bromine) to form halogenated ethanes
Hydrogenation Can undergo hydrogenation reactions to form ethane
Isomerization Can isomerize to form various isomers of butene and pentene
Oxidation Reacts with oxygen to form carbon dioxide and water
Polymerization Can undergo polymerization to form polyethylene

Reactions of ethylene with Alkali Metal

Alkali Metal Reaction
Lithium (Li) 2Li + ETHYLENE  react and convert into  Li2 ETHYLENE (Lithium acetylide)
Sodium (Na) 2Na + ETHYLENE  react and convert into  Na2 ETHYLENE (Sodium acetylide)
Potassium (K) 2K + ETHYLENE react and convert into  K2 C2H4 (Potassium acetylide)
Rubidium (Rb) 2Rb + ETHYLENE react and convert into  Rb2 C2H4 (Rubidium acetylide)
Cesium (Cs) 2Cs + ETHYLENE react and convert into  Cs2 C2H4 (Cesium acetylide)

Reactions of ethylene with Alkaline Earth Metal

Alkaline Earth Metal Reaction
Beryllium (Be)   no reaction occur hence no product formed
Magnesium (Mg)   no reaction occur hence no product formed
Calcium (Ca)   no reaction occur hence no product formed
Strontium (Sr)   no reaction occur hence no product formed
Barium (Ba)   no reaction occur hence no product formed
Radium (Ra)   no reaction occur hence no product formed

Reactions of ethylene with Transition Metal

Transition Metal Reaction
Titanium (Ti) TiCl4 + ETHYLENE react and convert into  Ti(C2H4)Cl2
Iron (Fe) Fe + ETHYLENE react and convert into  Fe(C2H4)
Ruthenium (Ru) Ru + ETHYLENE  react and convert into  Ru(C2H4)
Platinum (Pt) Pt + ETHYLENE  react and convert into  Pt(C2H4)
Copper (Cu)   no reaction occur hence no product formed   in ordinary situation
Nickel (Ni)  no reaction occur hence no product formed  in ordinary situation
Zinc (Zn)   no reaction occur hence no product formed   in ordinary situation
Cobalt (Co)   no reaction occur hence no product formed   in ordinary situation
Palladium (Pd)   no reaction occur hence no product formed   in ordinary situation
Chromium (Cr)   no reaction occur hence no product formed   in ordinary situation
Manganese (Mn)   no reaction occur hence no product formed   in ordinary situation

 

 

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