387614

Ethylene oxide

≥99.5%

• Synonyme(s) : Oxirane
• Formule empirique (notation de Hill) : C₂H₄O
• Numéro CAS: 75-21-8
• Poids moléculaire : 44.05
• Beilstein: 102378
• Numéro CE : 200-849-9
• Numéro MDL: MFCD00014482
• Code UNSPSC : 12142100
• ID de substance PubChem : 24864134

Propriétés

• Niveau de qualité: 200
• Essai: ≥99.5%
• Indice de réfraction: n20/D 1.3597 (lit.)
• pb: 10.7 °C (lit.)
• Pf: −111 °C (lit.)
• Densité: 0.882 g/mL at 25 °C (lit.)
• Groupe fonctionnel: ether
• Température de stockage: 2-8°C
• Chaîne SMILES: C1CO1
• InChI: 1S/C2H4O/c1-2-3-1/h1-2H2
• Clé InChI: IAYPIBMASNFSPL-UHFFFAOYSA-N

Description

Description générale

Ethylene oxide is generally synthesized by chlorohydrine process and direct oxidation of ethylene with air, catalyzed by silver(Ag).[1]

Ethylene oxide serves as a starting material to produce ethylene glycols, surfactants, emulsifiers, and polyurethane foams.[2]

Application

Ethylene oxide can be used as a precursor to synthesize:

• Poly(ethylene oxides) and poly(ethyleneglycol)s.[3][4]
• Ethylene carbonate via coupling reaction with CO₂ catalyzed by imidazolium zinc tetrahalides.[5];
• α,ω-heterodifunctionalized poly(ethylene oxide)s using organocatalyst N-heterocyclic carbenes via ring-opening polymerization.[6]

Conditionnement

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:

• Aldrich^® lecture-bottle station systems
• Aldrich^® lecture-bottle gas regulators

Autres remarques

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Informations légales

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Informations sur la sécurité

• Pictogrammes: GHS02,GHS04,GHS06,GHS08,GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H220,H230,H280,H301 + H331,H314,H335,H336,H340,H350,H360FD,H372
• Conseils de prudence: P202 - P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P403 + P233 - P410 + P403
• Classification des risques: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Carc. 1B - Chem. Unst. Gas A - Eye Dam. 1 - Flam. Gas 1A - Muta. 1B - Press. Gas Liquefied gas - Repr. 1B - Skin Corr. 1B - STOT RE 1 - STOT SE 3
• Organes cibles: Central nervous system, Nervous system, Respiratory system
• Code de la classe de stockage: 2A - Gases
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): -4.0 °F - closed cup
• Point d'éclair (°C): -20.0 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves