110280

Sigma-Aldrich

Dibutyl ether

ReagentPlus®, ≥99%

Synonym(s):
Butyl ether
Linear Formula:
[CH3(CH2)3]2O
CAS Number:
Molecular Weight:
130.23
Beilstein/REAXYS Number:
1732752
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor density

4.48 (vs air)

vapor pressure

4.8 mmHg ( 20 °C)

product line

ReagentPlus®

assay

≥99%

form

liquid

autoignition temp.

365 °F

expl. lim.

8.5 %

refractive index

n20/D 1.399 (lit.)

pH

5.2

bp

142-143 °C (lit.)

mp

−98 °C (lit.)

density

0.764 g/mL at 25 °C (lit.)

SMILES string

CCCCOCCCC

InChI

1S/C8H18O/c1-3-5-7-9-8-6-4-2/h3-8H2,1-2H3

InChI key

DURPTKYDGMDSBL-UHFFFAOYSA-N

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General description

Dibutyl ether is commonly used as a solvent for various reactions. It forms azeotropic compositions with various organic solvents and the vapor/liquid equilibria of its binary mixtures have been investigated by head-space gas chromatography.

Application

Dibutyl ether may be used to compose the solvent mixtures in the following studies:
  • To evaluate the anthracene solubility in various binary solvent mixtures composed of dibutyl ether along with n-hexane, cyclohexane, n-heptane, methylcyclohexane, n-octane, isooctane and cyclooctane.
  • To measure the pyrene solubility in various binary solvent mixtures composed of dibutyl ether along with n-hexane, cyclohexane, n-heptane, methylcyclohexane, n-octane, isooctane and tert-butylcyclohexane.
  • To investigate the reaction mechanism and kinetic studies of the reaction of phenyl isocyanate with methanol in the presence of dibutyltin diacetate (catalyst) to afford urethane. Rate constant of the reaction, k was reported to be 0.96liter/(mole sec).

Packaging

1 L in glass bottle
18, 200 L in steel drum

Legal Information

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

Pictograms

FlameExclamation mark

Signal Word

Warning

Target Organs

Respiratory system

RIDADR

UN1149 - class 3 - PG 3 - Dibutyl ethers

WGK Germany

WGK 2

Flash Point(F)

77.0 °F - closed cup

Flash Point(C)

25 °C - closed cup

Certificate of Analysis

Certificate of Origin

Natasha A Andrade et al.
Environmental pollution (Barking, Essex : 1987), 222, 412-422 (2017-01-21)
Polybrominated diphenyl ethers (PBDEs) may enter the environment because of accumulation in biosolids followed by application to agricultural lands. No published dissipation studies are available for PBDEs in agricultural soils after biosolids application. Therefore, we conducted a 3-year study to...
Solubility of anthracene in binary solvent mixtures containing dibutyl ether.
Marthandan MV and Acree Jr WE.
Journal of Chemical and Engineering Data, 32(3), 301-303 (1987)
Isothermal vapour/liquid equilibria of binary mixtures with dibutyl ether at 298.15 K.
Lepori L, et al.
Physical Chemistry Chemical Physics, 2(21), 4837-4842 (2000)
Kinetics and mechanism of urethane formation catalyzed by organotin compounds. I. The reaction of phenyl isocyanate with methanol in dibutyl ether under the action of dibutyltin diacetate.
Van der Weij FW.
Journal of Polymer Science Part A: Polymer Chemistry, 19(2), 381-388 (1981)
Zhao Chen et al.
Electrophoresis, 38(22-23), 3036-3047 (2017-07-18)
In the present study, a monolithic capillary column with higher permeability was developed for the in vivo discrimination of four coumarin analogs (bergapten, 2'-acetylangelicin, imperatorin, and osthole) that typically require long separation times in HPLC. Instead of conventional methacrylate ester...

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