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Formula: CH2 CH2O
Sp. Gr.: 0.87
Viscosity: Water-thin
Remarks: Colorless liquid; soluble in most organic solvents and miscible with water in all proportions. Explosive limits of vapor in air 3 to 80%, b.p. 11°C / 52°F, flash point (open cup) below -20°C / -4°F. Basic material used in manufacturing several of the glycols, in making acrylonitrile, ethanolamines; used in making detergents; petroleum emulsifiers; also used as a rocket propellant. Ethylene oxide is extremely flammable; vapor is harmful and may cause burns. Spontaneous combustion may take place at or near ambient temperatures.
Pump Notes: Cast iron construction is satisfactory. PTFE or Kalrez® elastomers are recommended. Due to the explosive nature of this product, double mechanical seals or a sealless design pump should be used.
Kalrez® is a registered trademark of DuPont Dow Elastomers®, L.L.C.