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 Ethylene Oxide

Gas Name:

 Ethylene Oxide

Chemical Formula:

C₂H₄O

Synonyms:

Oxirane, Epoxyethane, 1,2-Epoxyethane, Dimethylene oxide

Product Uses, Sources & Applications

Ethylene oxide is a manufactured chemical that is used for the production of ethylene glycol, an intermediary to an array of commercial and consumer products such as plastics, detergents and antifreeze. It is also used as a sterilizing agent for medical supplies and as a fumigant in agriculture. Ethylene oxide may be seen in applications such as:

Chemical production in manufacturing facilities
Sterilization of equipment in laboratories and hospitals
Fumigation of crops in agriculture

Hazards

Toxicity

Short Term (15-minute STEL*):

5 ppm

Long-term (8-hr TWA*):

1 ppm

*Based on OSHA regulation. Always consult local regulations directly.

Flammability

Lower Explosive Limit (LEL):

3.0% by volume

NIOSH Pocket Guide:

View pocket guide

Physical Properties

Appearance and Odor:

Colorless with a sweet, ether-like odor

Relative Density (air = 1.0):

1.49

Recommendations

Sensor Type:

Electrochemical

Standard Range:

0-10 ppm

Standard Trip Points:

1 ppm, 3 ppm

Recommended Sensor Mounting Height:

12 – 18” AFF

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