Acetylene
Acetylene
Acetylene
Acetylene - space-filling model
Names
IUPAC name
Acetylene[1]
Systematic IUPAC name
Ethyne
Identifiers
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3D model (JSmol)
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ChemSpider
DrugBank
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UNII
UN number 1001 (dissolved)
3138 (in mixture with ethylene and propylene)
InChI
SMILES
Properties
Molecular formula C2H2
Molar mass 26.04 g mol−1
Density 1.097 kg/m3
Melting point

−80.8 °C (189 K, subl)

Boiling point

−84 °C

Acidity (pKa) 25
Structure
Molecular shape Linear
Thermochemistry
Std enthalpy of
formation
ΔfHo298
+226.88 kJ/mol
Hazards
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Walter Reppe discovered that in the presence of metal catalysts, acetylene can react to give a wide range of industrially significant chemicals.

 
 
1,4-Butynediol is produced industrially in this way from formaldehyde and acetylene.
 
 
 
 

සැකිල්ල:Alkynes

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