443549 Sigma-Aldrich

Diethyl ether

anhydrous, ACS reagent, ≥99.0%, contains 1 ppm BHT as inhibitor

Synonym: Ether, Ethyl ether

  • CAS Number 60-29-7

  • Linear Formula (CH3CH2)2O

  • Molecular Weight 74.12

  •  Beilstein Registry Number 1696894

  •  EC Number 200-467-2

  •  MDL number MFCD00011646

  •  PubChem Substance ID 24868063



Related Categories ACS Grade, ACS Grade Solvents, ACS and Reagent Grade Solvents, Carbon Steel Cans with NPT Threads, Diethyl Ether,
grade   ACS reagent
vapor density   2.6 (vs air)
vapor pressure   28.69 psi ( 55 °C)
  8.59 psi ( 20 °C)
assay   ≥99.0%
autoignition temp.   320 °F
contains   1 ppm BHT as inhibitor
expl. lim.   36.5 %
impurities   Alcohol ( as CH3CH2OH ), passes test
  ≤0.0002 meq/g Titr. acid
  ≤0.001% Carbonyl ( as HCHO )
  ≤0.03% water
  ≤1 ppm Peroxide ( as H2O2 )
evapn. residue   ≤0.001%
color   APHA: ≤10
refractive index   n20/D 1.3530(lit.)
bp   34.6 °C(lit.)
mp   −116 °C(lit.)
density   0.706 g/mL at 25 °C(lit.)


Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Price and Availability

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Supplemental Hazard Statements 
May form explosive peroxides., Repeated exposure may cause skin dryness or cracking.
UN1155 - class 3 - PG 1 - Diethyl ether
WGK Germany 
Flash Point(F) 
-40 °F
Flash Point(C) 
-40 °C

Frequently Asked Questions

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Can you recommend a Solvent Extractor for organics from aqueous solution?
Solvent extractors are often used for the quantitative extraction of organics from aqueous solutions and separations in immunoassays. The MIXXOR system has been applied successfully in many laboratory solvent extraction operations and is ideal for the rapid screening of alternative solvents for specific extraction problems.
Why do peroxides form in certain solvents and how do I test for it?
A significant number of laboratory solvents can undergo autoxidation under normal storage conditions to form unstable and potentially dangerous peroxide by-products. Molecular structure is the primary factor relating to a material’s potential for hazardous peroxide formation.  It is important to understand the stability of materials in use and if unclear, consult Sigma-Aldrich Technical Support, or visit the Peroxide-forming Solvents web page by clicking on the following link:
What are some of the preservatives used in the most common ethers and chlorinated solvents and why are they added?
Certain solvents will degrade over time requiring special handling and storage considerations. In addition, the products of certain degradation processes pose a potential safety risk if present at sufficiently high levels. For these types of materials, small amounts of stabilizing chemicals are added to slow down or stop material degradation.
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Protocols & Articles

Related Content

Properties of Solvents Table

a. Gant, R., LC/GC 10(7), 515 (1992) 1. At 20 °C 2. At 20 °C +/- 5 °C relative to water at 4 °C 3. At 10mmHg pressure 4. At l=589.32nm
Keywords: Gas chromatography, High performance liquid chromatography

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