Ethylene Oxide
C2H4O
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General Characteristics Health Hazards Material Recommendations
A colorless, flammable gas and liquefied gas. Toxic. Irritates the eyes and mucous membranes. Can cause lung damage. Considered to be a carcinogenic and could possibly cause genetic damage
.
Steel or Stainless Steel.
TLV-TWA Flammable Limits DOT Class / Label
1 ppm 3 - 100% 2.3/ Poison Gas
Molecular Weight Specific Gravity Specific Volume
44.1 1.52 @ 70° F 8.78 cu.ft./lb @ 70° F
CGA Valve Outlet CAS Registry No. UN Number
510 75-21-8 1040
National Stock Number (NSN) Applicable to Ethylene Oxide MIL Specs/ Fed Specs
MSDS for Ethylene Oxide


Grade
Part #
Purity Minimum Cylinder
Size
Volume
LBS
Pressure
@ 70 F
Comments
High Purity
470000
99.9% Min.
Liquid Phase
022
LBS

10
0.5

50
50

None

Chemically Pure
402100
99.7% Min.
Liquid Phase

022
LBS
10
0.5
50
50

Uses: Ethylene Oxide - C2H4O - the principle use is in the manufacture of ethylene glycol and higher alcohols which find important applications in automotive antifreeze, explosives, cellophane, polyester resins, synthetic fibers and rubbers, and hydraulic fluids, The higher alcohols such as di- and tri- are used as plasticizers, humectants, lubricants, and solvents. It is an important intermed-iate in the manufacture of glycol ether solvents, ethanolamines and nonionic detergents. As a pharmaceutical intermediate it is used in the synthesis of choline, thiamine and procaine. In mixtures with carbon dioxide and halogenated propellants, finds wide use as a fumigant, fungicide and sterilizing agent.