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Sigma-Aldrich

Diisopropyl ether

puriss. p.a., ≥98.5% (GC)

Synonym(s):

Isopropyl ether

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About This Item

Linear Formula:
(CH3)2CHOCH(CH3)2
CAS Number:
108-20-3
Molecular Weight:
102.17
Beilstein/REAXYS Number:
1731256
EC Number:
203-560-6
MDL number:
MFCD00008880
UNSPSC Code:
12191502
PubChem Substance ID:
329755758
NACRES:
NA.07

vapor density

3.5 (vs air)

vapor pressure

120 mmHg ( 20 °C)

grade

puriss. p.a.

assay

≥98.5% (GC)

form

liquid

autoignition temp.

827 °F

contains

~0.001% 2,6-di-tert-butyl-4-methylphenol as stabilizer

expl. lim.

1-21 %, 100 °F

impurities

≤0.001% peroxides (as H2O2)
≤0.005% free acid (as C2H5COOH)
≤0.1% water
≤0.5% isopropanol (GC)

evapn. residue

≤0.002%

refractive index

n20/D 1.367 (lit.)
n20/D 1.368

bp

68-69 °C (lit.)

mp

−85 °C (lit.)

density

0.724 g/mL at 20 °C
0.725 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.1 mg/kg
K: ≤0.5 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.1 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sr: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

SMILES string

CC(C)OC(C)C

InChI

1S/C6H14O/c1-5(2)7-6(3)4/h5-6H,1-4H3

InChI key

ZAFNJMIOTHYJRJ-UHFFFAOYSA-N

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General description

Diisopropyl ether is a colorless liquid. It is widely used as a solvent for the isolation of fats and oils. It can be synthesized from isopropyl alcohol. Its mixture with isooctane has been added to the gasoline fuel as an antiknocking agent. Its synthesis from propylene and water in a single-pass trickle-bed reactor in the presence of an ion-exchange resin catalyst Amberlyst 15 has been proposed.

Application

Diisopropyl ether may be employed as a solvent for the preparation of aliphatic and aromatic cyanohydrins.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

hcodes

H225,H336

Hazard Classifications

Flam. Liq. 2 - STOT SE 3

target_organs

Respiratory system

supp_hazards

EUH019,EUH066

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

-20.2 °F - closed cup

flash_point_c

-29 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Single stage synthesis of diisopropyl ether-an alternative octane enhancer for lead-free petrol.
Heese FP, et al.
Catalysis Today, 49(1), 327-335 (1999)
Eagleson M.
Concise Encyclopedia Chemistry, 325-325 (1994)
Novel (R)-oxynitrilase sources for the synthesis of (R)-cyanohydrins in diisopropyl ether.
Kiljunen E and Kanerva LT.
Tetrahedron Asymmetry, 8(8), 1225-1234 (1997)
R Gonzalez-Olmos et al.
Chemosphere, 71(11), 2098-2105 (2008-02-27)
Methyl tert-butyl ether (MTBE) is the most widely used oxygenate in gasoline blending and has become one of the world's most widespread groundwater and surface water pollutants. Alternative oxygenates to MTBE, namely ethyl tert-butyl ether (ETBE), tert-amyl ether (TAME) and
P Adlercreutz
Biochimica et biophysica acta, 1163(2), 144-148 (1993-05-13)
Horse liver alcohol dehydrogenase and alpha-chymotrypsin were deposited on a porous support material, Celite. After equilibration at a well-defined water activity, the catalytic activity was measured with diisopropyl ether as reaction medium. The effects of the presence of polyols and
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