Acetylene

C₂H₂

IUPAC: Ethyne

CAS: 74-86-2

Aperçu

Acetylene is the simplest alkyne, producing an extremely hot flame (3,300°C) when burned with oxygen. It is used in welding and cutting metals.

Composition

Élément Symbole Atomes Masse atomique
Hydrogen H 2 1,0080
Carbon C 2 12,0110

Composition élémentaire

H
Hydrogen ×2
7,7%
C
Carbon ×2
92,3%

Usages

  • • Oxy-acetylene welding
  • • Chemical synthesis
  • • Lighting (historical)

Le saviez-vous

  • ✦ Acetylene burns at about 3,300°C with oxygen — hot enough to melt most metals

Sécurité

  • ⚠ Extremely flammable
  • ⚠ Explosive when compressed
  • ⚠ Asphyxiant

Structure

SMILES

C#C

Propriétés

Type
organic
État
gas
Masse molaire
26,04 g/mol
Densité
0,0011 g/cm³
Point de fusion
-80,8 °C
Point d'ébullition
-84,0 °C
Solubilité
1.07 g/L at 25°C

Molecular Descriptors

Exact Mass
26,0157
XLogP
0,4
TPSA
0,0 Ų
H-Bond Donors
0
H-Bond Acceptors
0
Rotatable Bonds
0
Heavy Atoms
2
Complexity
8,0

Composés associés

Caffeine

C₈H₁₀N₄O₂

Acrylic Acid

C₃H₄O₂

Alanine

C₃H₇NO₂

Dichloromethane

CH₂Cl₂

Asparagine

C₄H₈N₂O₃

Bisphenol A Diglycidyl Ether

C₂₁H₂₄O₄

Dimethyl Carbonate

C₃H₆O₃

Dopamine

C₈H₁₁NO₂

Bromothymol Blue

C₂₇H₂₈Br₂O₅S

Butane

C₄H₁₀

Frequently Asked Questions

What is Acetylene?
Acetylene (C₂H₂) is a organic compound with the IUPAC name Ethyne.
What is the molecular weight of Acetylene?
Acetylene has a molar mass of 26.04 g/mol.
What state is Acetylene at room temperature?
Acetylene is a gas at room temperature.
Is Acetylene organic or inorganic?
Acetylene is classified as an organic compound.
What elements make up Acetylene?
Acetylene (C₂H₂) is composed of Hydrogen (H), Carbon (C).