MilliporeSigma
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32160

Sigma-Aldrich

Diethylene glycol

puriss. p.a., ≥99.0% (GC), colorless

Synonym(s):
2,2′-Oxydiethanol, 2-Hydroxyethyl ether, Bis(2-hydroxyethyl) ether, Diglycol
Linear Formula:
(HOCH2CH2)2O
CAS Number:
Molecular Weight:
106.12
Beilstein:
969209
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

2.14 (vs air)

Quality Level

vapor pressure

0.01 mmHg ( 20 °C)

description

non-ionic

grade

puriss. p.a.

assay

≥99.0% (GC)

form

viscous liquid (clear)

autoignition temp.

442 °F

expl. lim.

2-12.3 %

impurities

≤0.003% peroxides (as H2O2)
≤0.01% free acid (as CH3COOH)
≤0.1% water
≤0.8% ethylene glycol (HOCH2CH2OH)

color

colorless
APHA: ≤25

refractive index

n20/D 1.447 (lit.)
n20/D 1.447

bp

245 °C (lit.)

mp

−10 °C (lit.)

density

1.116 g/mL at 20 °C
1.118 g/mL at 25 °C (lit.)

cation traces

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤2 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤10 mg/kg

SMILES string

OCCOCCO

InChI

1S/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2

InChI key

MTHSVFCYNBDYFN-UHFFFAOYSA-N

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General description

Diethylene glycol (DEG) is formed as side reaction product during the esterification reaction of terephthalic acid with ethylene glycol. It readily forms complexes with 3d transition metal cations in the presence of alkaline hydroxide. Its solutions are widely employed for antifreeze and lubricating applications. Oxidative degradation of DEG with ozone by modified Fenton process (mixture of hydrogen peroxide and ferric salt) was described in a study.

Application

Diethylene glycol may be used for electrodeposition of cadmium sulfide (CdSe) films. It may be used to compose the fluoride ion electrolytes, for use in the preparation of self-organized titania nanotube arrays.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

280.4 °F - closed cup

Flash Point(C)

138 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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