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
| assay | ≥99.5% |
| bp | 10.7 °C (lit.) |
| density | 0.882 g/mL at 25 °C (lit.) |
| InChI | 1S/C2H4O/c1-2-3-1/h1-2H2 |
| InChI key | IAYPIBMASNFSPL-UHFFFAOYSA |
| mp | −111 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| 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-heterodifunctionali |
| 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 |
| Symbol |      GHS02,GHS04,GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H220 - H230 - H280 - H301 + H331 - H314 - H335 - H336 - H340 - H350 - H360FD - H372 |
| Precautionary statements | P202 - P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | F+,T |
| Risk Statements | 45-46-6-12-23-36/37/38 |
| Safety Statements | 53-45 |
| RIDADR | UN1040 - class 2 - Ethylene oxide |
| WGK Germany | WGK 3 |
| Flash Point(F) | -4.0 °F - closed cup |
| Flash Point(C) | -20.0 °C - closed cup |
| Purity | ≥99.5% |
| bp | 10.7 °C (lit.) |
| mp | −111 °C (lit.) |
| Density | 0.882 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12142100 |