IUPAC Name: oxirane
CAS Number: 75-21-8
Chemical Formula: C₂H₄O
Molecular Weight: 44.05
EC Number: 200-849-9
Grado de pureza: Grado farmacéutico
Aplicación: Gas esterilizante para la esterilización de dispositivos médicos y alimentos
Purity , %: 99.9
Water: ≤ 100 ppm
Ethanol: ≤ 100 ppm
DOT Shipping Name: Ethylene Oxide
DOT Classification: 2.3
DOT Label: Poison Gas, Flammable Gas
UN Number: UN 1040
CGA/JIS/BS341/DIN477: 510/W22-14L/NO.7/NO.1
Shipped as: Liquefied Gas
Cylinder State @ 21.1°C: Liquid
Flammable Limits In Air: 3.0-100%
Auto Ignition Temperature (°C ): 428.9
Specific gravity (air =1): 1.521
Critical Temperature ( °C ): 196
Critical Pressure ( psig ): 1028.7

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Founded in 2015, Shanghai Wechem Technology Limited (wechem.cn) trades, manufactures and services a very broad line of specialty and electronic gases. Its catalog spans process gases (nitrous oxide, phosphine, hydrogen, helium, arsine, germane), fluorinated halocarbons and etching gases (tungsten and molybdenum hexafluoride, boron tribromide/trichloride, sulfur hexafluoride, various perfluorocarbons), high-purity industrial gases (nitrogen, oxygen, argon, neon, krypton, xenon difluoride), and semiconductor process chemicals such as KOH developer, ITO and aluminum etchants, electronic-grade tetramethylammonium hydroxide, and ethyl silicate. The company offers other contract customization under its own brand, emphasizing delivery terms, willingness to meet buyers' specifications, small-order acceptance and service quality, and sells across Asia, the Middle East, Africa, North and South America, Western and Eastern Europe and Australasia.