Acetylene (C₂H₂) is a colorless, highly flammable gas.

Applications
Used in optical spectrometry as an instrumentation gas; used in atomic absorption for elemental analysis as an instrumentation gas. Used as a fuel gas in atomic absorption spectrometry for elemental analysis.

Materials Compatibility Metals:
Stainless Steel; Carbon Steel; Aluminum; Monel; Brass (Low Copper)

Plastics:
Kel-F; PTFE, FEP, and PFA Fluoropolymers resins; Tefzel; Kynar

Elastomers:
Kalrez; Viton; Buna-N; Neoprene; Polyurethane

Molecular Weight:
26.04

Specific Gravity (Air=1):
0.908

MSDS Reference:
P-4559-H

Odor:
Ethereal

CAS Registry No:
74-86-2

Select a gas from the list of the below for more information about gas applications and supply options.