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Ethylene oxide

ALDRICH/387614 - ≥99.5%

Synonym: Oxirane

CAS Number: 75-21-8
Empirical Formula (Hill Notation): C2H4O
Molecular Weight: 44.05
EC Number: 200-849-9
MDL Number: MFCD00014482
Linear Formula: C2H4O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-387614-227G 227 g
 $882.00
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assay ≥99.5%
bp 10.7 °C (lit.)
density 0.882 g/mL at 25 °C (lit.)
functional group ether
InChI 1S/C2H4O/c1-2-3-1/h1-2H2
InChI key IAYPIBMASNFSPL-UHFFFAOYSA-N
mp −111 °C (lit.)
Quality Level 200 
refractive index n20/D 1.3597 (lit.)
SMILES string C1CO1
storage temp. 2-8°C
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.
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.
Legal Information: Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Other Notes: See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation 
Packaging: 227 g in steel cylinder
Packaging: 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
Purity ≥99.5%
bp 10.7 °C (lit.)
mp −111 °C (lit.)
Density 0.882 g/mL at 25 °C (lit.)
Refractive Index n20/D 1.3597 (lit.)
Storage Temp. 2-8°C
UNSPSC 12142100

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