Acetylene

C₂H₂

IUPAC: Ethyne

CAS: 74-86-2

概述

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.

组成

元素 符号 原子 原子质量
Hydrogen H 2 1.0080
Carbon C 2 12.0110

元素组成

H
Hydrogen ×2
7.7%
C
Carbon ×2
92.3%

用途

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

趣味知识

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

安全性

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

Structure

SMILES

C#C

属性

类型
organic
状态
gas
摩尔质量
26.04 g/mol
密度
0.0011 g/cm³
熔点
-80.8 °C
沸点
-84.0 °C
溶解度
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

相关化合物

Caffeine

C₈H₁₀N₄O₂

Coumarin

C₉H₆O₂

Acetone

(CH₃)₂CO

Acrylic Acid

C₃H₄O₂

Cysteine

C₃H₇NO₂S

DDT

C₁₄H₉Cl₅

Alanine

C₃H₇NO₂

Diazepam

C₁₆H₁₃ClN₂O

Dichloromethane

CH₂Cl₂

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).