387614
Ethylene oxide
≥99.5%
Synonym(s):
Oxirane
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About This Item
Empirical Formula (Hill Notation):
C2H4O
CAS Number:
Molecular Weight:
44.05
EC Number:
200-849-9
UNSPSC Code:
12142100
PubChem Substance ID:
Beilstein/REAXYS Number:
102378
MDL number:
Assay:
≥99.5%
Quality Level
assay
≥99.5%
refractive index
n20/D 1.3597 (lit.)
bp
10.7 °C (lit.)
mp
−111 °C (lit.)
density
0.882 g/mL at 25 °C (lit.)
functional group
ether
storage temp.
2-8°C
SMILES string
C1CO1
InChI
1S/C2H4O/c1-2-3-1/h1-2H2
InChI key
IAYPIBMASNFSPL-UHFFFAOYSA-N
General description
Ethylene oxide is generally synthesized by chlorohydrine process and direct oxidation of ethylene with air, catalyzed by silver(Ag).
Ethylene oxide serves as a starting material to produce ethylene glycols, surfactants, emulsifiers, and polyurethane foams.
Ethylene oxide serves as a starting material to produce ethylene glycols, surfactants, emulsifiers, and polyurethane foams.
Application
Ethylene oxide can be used as a precursor to synthesize:
- Poly(ethylene oxides) and poly(ethyleneglycol)s.
- Ethylene carbonate via coupling reaction with CO2 catalyzed by imidazolium zinc tetrahalides.;
- α,ω-heterodifunctionalized poly(ethylene oxide)s using organocatalyst N-heterocyclic carbenes via ring-opening polymerization.
Packaging
Ethylene oxide is supplied in a lecture bottle (~75psi) and is intended to be dispensed with the valve facing down. The installed male ¼” NPT needle valve is shipped with an overcap to prevent the escape of gas during shipment.
Other Notes
See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation
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signalword
Danger
Hazard Classifications
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
target_organs
Central nervous system, Nervous system, Respiratory system
Storage Class
2A - Gases
wgk
WGK 3
flash_point_f
-4.0 °F - closed cup
flash_point_c
-20.0 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves
Regulatory Information
监管及禁止进口产品
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Surface active ethylene oxide adducts (2013)
Multifunctional Poly (ethylene glycol)s
Obermeier B, et al.
Angewandte Chemie (International ed. in English), 50(35), 7988-7997 (2011)
N-heterocyclic carbene-organocatalyzed ring-opening polymerization of ethylene oxide in the presence of alcohols or trimethylsilyl nucleophiles as chain moderators for the synthesis of α, ω-heterodifunctionalized poly (ethylene oxide)s
Raynaud J, et al.
Macromolecules, 43(6), 2814-2823 (2010)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 387614-PZ | 04061823974615 |
| 387614-227G | 04061837858482 |