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387614 Sigma-Aldrich

Ethylene oxide

≥99.5%

Synonym: Oxirane

  • CAS Number 75-21-8

  • Empirical Formula (Hill Notation) C2H4O

  • Molecular Weight 44.05

  •  Beilstein/REAXYS Number 102378

  •  EC Number 200-849-9

  •  MDL number MFCD00014482

  •  PubChem Substance ID 24864134

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Properties

Related Categories Chemical Synthesis, Specialty Gases, Synthetic Reagents More...
InChI Key   IAYPIBMASNFSPL-UHFFFAOYSA-N
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.)

Description

Packaging

227 g in steel cylinder

Application

Useful monomer for the synthesis of poly(ethylene oxides) and glycols

Recommended products

Z148504/Z148512 CGA 180 Regulators OR Z146951 CGA 110 Valve with Z147095 CGA 110 to CGA 180 adapter and Z146986 washer for valve OR Z151661 CGA 180 Purge Valve. Also recommended Z562610 CGA 180 Lecture Bottle Station.

Safety & Documentation

Safety Information

Signal word 
Danger
RIDADR 
UN1040 - class 2 - Ethylene oxide
WGK Germany 
3
RTECS 
KX2450000
Flash Point(F) 
-4 °F
Flash Point(C) 
-20 °C

Documents

Certificate of Analysis

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Protocols & Articles

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Peer-Reviewed Papers
15

References

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