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Key Documents

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Safety Information

387614

Sigma-Aldrich

Ethylene oxide

≥99.5%

Synonym(s):

Oxirane

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About This Item

Empirical Formula (Hill Notation):
C2H4O
CAS Number:
75-21-8
Molecular Weight:
44.05
Beilstein:
102378
EC Number:
200-849-9
MDL number:
MFCD00014482
UNSPSC Code:
12142100
PubChem Substance ID:
24864134
Product 387614 is not currently sold in your country. Contact Technical Service

Quality Level

200

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

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Show Differences

1 of 4

This Item
779202CRM47949CRM44609
环氧乙烷 ≥99.5%

387614

环氧乙烷

环氧乙烷 溶液 2.5-3.3 M in THF

779202

环氧乙烷 溶液

环氧乙烷标准液 CRM certified reference material, 2000 μg/mL in dichloromethane, ampule of 1 mL

CRM47949

环氧乙烷标准液 CRM

环氧乙烷 溶液 certified reference material, 500 μg/mL in DMSO, ampule of 1 mL

CRM44609

环氧乙烷 溶液

assay

≥99.5%

assay

-

assay

-

assay

-

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

100

storage temp.

2-8°C

storage temp.

-

storage temp.

2-8°C

storage temp.

2-8°C

bp

10.7 °C (lit.)

bp

-

bp

-

bp

-

refractive index

n20/D 1.3597 (lit.)

refractive index

-

refractive index

-

refractive index

-

density

0.882 g/mL at 25 °C (lit.)

density

-

density

-

density

-

General description

Ethylene oxide is generally synthesized by chlorohydrine process and direct oxidation of ethylene with air, catalyzed by silver(Ag).[1]

Ethylene oxide serves as a starting material to produce ethylene glycols, surfactants, emulsifiers, and polyurethane foams.[2]

Application

Ethylene oxide can be used as a precursor to synthesize:
  • Poly(ethylene oxides) and poly(ethyleneglycol)s.[3][4]
  • Ethylene carbonate via coupling reaction with CO2 catalyzed by imidazolium zinc tetrahalides.[5];
  • α,ω-heterodifunctionalized poly(ethylene oxide)s using organocatalyst N-heterocyclic carbenes via ring-opening polymerization.[6]

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

Other Notes

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

also commonly purchased with this product

Product No.
Description
Pricing

control valve

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Description
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hose barb

Product No.
Description
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purge valve

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Description
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recommended

Product No.
Description
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regulator

Product No.
Description
Pricing

Signal Word

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 Code

2A - Gases

WGK

WGK 3

Flash Point(F)

-4.0 °F - closed cup

Flash Point(C)

-20.0 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品
  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCV3797
    MKCV1308
    MKCT1419
    STBK7598
    STBK5985

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    Find documentation for the products that you have recently purchased in the Document Library.

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    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)
    Non-fouling surfaces produced by gas phase pulsed plasma polymerization of an ultra low molecular weight ethylene oxide containing monomer
    Wu YJ, et al.
    Colloids and Surfaces. B, Biointerfaces, 18(3-4), 235-248 (2000)
    Imidazolium zinc tetrahalide-catalyzed coupling reaction of CO2 and ethylene oxide or propylene oxide
    Kim HS, et al.
    J. Catal., 220(1), 44-46 (2003)
    Multifunctional Poly (ethylene glycol)s
    Obermeier B, et al.
    Angewandte Chemie (International ed. in English), 50(35), 7988-7997 (2011)
    Surface active ethylene oxide adducts (2013)
    View All Related Papers

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