Ethylene oxide

C₂H₄OCAS 75-21-844.05 g/mol

Open in Covalent MOL file

Epoxide Ether

Properties

Molecular formula: C₂H₄O
Molar mass: 44.05 g/mol
Exact mass: 44.0262 Da
Density: 0.882 g/mL (at 10 °C)
Melting point: −111 °C
Boiling point: 10.7 °C
Critical temperature: 196.0 °C (469.1 K)ChemSep
Critical pressure: 71.9 barChemSep
Acentric factor: 0.197ChemSep
Enthalpy of formation (gas): −52.63 kJ/molChemSep
Flash point: -28.9 °C (closed cup)
Water solubility: miscible
logP: 0.02Crippen estimate
Polar surface area: 12.5 Å²
H-bond donors / acceptors: 0 / 1
Rotatable bonds: 0

Hazards

Danger

H220 Extremely flammable gasFlammable gases
H301 Toxic if swallowedAcute toxicity, oral
H314 Causes severe skin burns and eye damageSkin corrosion/irritation
H318 Causes serious eye damageSerious eye damage/eye irritation
H331 Toxic if inhaledAcute toxicity, inhalation
H335 May cause respiratory irritationSpecific target organ toxicity, single exposure; Respiratory tract irritation
H336 May cause drowsiness or dizzinessSpecific target organ toxicity, single exposure; Narcotic effects
H340 May cause genetic defectsGerm cell mutagenicity
H350 May cause cancerCarcinogenicity
H360Fd May damage fertility; Suspected of damaging the unborn childReproductive toxicity
H372 Causes damage to organs through prolonged or repeated exposureSpecific target organ toxicity, repeated exposure

Harmonised EU classification (CLP Annex VI, index 603-023-00-X), via PubChem.

Precautionary statements

P203, P210, P222, P260, P261, P264, P264+P265, P270, P271, P280, P301+P316, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P319, P321, P330, P363, P377, P381, P403, P403+P233, P405, P501