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Ethane

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Ethane

Formula: C2H6, R-170

CAS No: 78-84-0

Ethane (C2H6) is a flammable, colorless, odorless liquefied gas. It is a key building block in both industrial and specialty chemical processes, serving as a starting material for the production of halogenated alkanes, alcohols, and other organic compounds. Large volumes are consumed in the manufacture of plastics, antifreeze, and detergents.

Ethane is also used as a refrigerant, replacing substances that are harmful to the ozone layer or have high global warming potentials. In the semiconductor industry, ethane and ethane-containing gas mixtures are used for etch modulation in advanced manufacturing processes.

Applications include:

  • Starting material for the production of halogenated alkanes, alcohols, and other organic compounds.

  • Feedstock for large-scale production of plastics, antifreeze, and detergents.

  • Refrigerant in systems requiring ozone-safe, lower-GWP alternatives.

  • Etch modulation gas in semiconductor manufacturing.

EFC Gases & Advanced Materials supplies high-purity ethane to meet the demanding requirements of chemical, refrigeration, and semiconductor applications. Our controlled packaging, rigorous analytical verification, and secure logistics ensure consistent purity and safe delivery from production to point-of-use.

Applications
Specifications
Further Specifications
Cylinder Sizes
  • Used in the synthesis of halogenated alkanes, alcohols, and other organic compounds.
  • Used for the manufacturing of plastics, antifreeze, and detergents.
  • Refrigerant in ozone-safe, lower-GWP systems.
  • Modulates etching processes in semiconductor manufacturing.
Grade 2 Grade 3 Grade 4 Grade 5 Grade 5.5
Purity 99.0% 99.9% 99.99% 99.999% 99.9995%
Nitrogen < 500 ppmv < 100 ppmv < 10 ppmv < 3 ppmv < 1 ppmv
Oxygen < 200 ppmv < 20 ppmv < 4 ppmv < 1 ppmv < 1 ppmv
Carbon Dioxide/Carbon < 200 ppmv < 10 ppmv < 8 ppmv < 2 ppmv < 1ppmv
Other Hydrocarbons < 9000 ppmv < 800 ppmv < 80 ppmv < 6 ppmv < 3 ppmv
Moisture < 10 ppm < 5 ppmv < 5 pmmv < 3 ppmv < 1 ppmv
Total Impurities < 1% < 1000 ppmv < 100 ppmv < 10 ppmv < 5 ppmv
Technical Data
Molecular Weight 30.07
Specific Volume 12.8 cf/lb
Pressure @ 70ºF 543 psig
Flammability Limits 3.0-12.5% in air
Valve Outlet: CGA 350 LB CGA 170
Shipping Information
DOT Name: Ethane, Compressed
Hazard Class 2.1
DOT No. UN 1035
DOT Label Flammable Gas
CAS No. 78-84-0
Cylinder Size Fill Weight (lb)
49L/Size 300 40
44L/Size 200 32
16L/Size 80 12
7L/Size 35 5

Moisture level guaranteed only when EFC Gases & Advanced Materials prepares the cylinders. All concentrations are on a mol/mol basis unless otherwise stated. Product sold on the basis of total impurities. Individual impurities may vary slightly.