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Diethylene glycol

Name: Diethylene glycol
Brand: SIAL

puriss. p.a., ≥99.0% (GC), colorless

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Synonym(s):

2,2′-Oxydiethanol, 2-Hydroxyethyl ether, Bis(2-hydroxyethyl) ether, Diglycol

Linear Formula:

(HOCH₂CH₂)₂O

CAS Number:

111-46-6

Molecular Weight:

106.12

Beilstein:

969209

EC Number:

203-872-2

MDL number:

MFCD00002882

PubChem Substance ID:

57648659

NACRES:

NA.21

vapor density

2.14 (vs air)

Quality Level

200

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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Related Categories

Detergents - Anionic, Cationic, Zwitterionic, Anti-foaming

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

GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

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

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Reactivity of 3d transition metal cations in diethylene glycol solutions. Synthesis of transition metal ferrites with the structure of discrete nanoparticles complexed with long-chain carboxylate anions.

Daniela Caruntu et al.

Inorganic chemistry, 41(23), 6137-6146 (2002-11-12)

Study of the reactivity of 3d transition metal cations in diethylene glycol solutions revealed several key features that made it possible to develop a new method for synthesis of the nanocrystalline transition metal ferrites. The 3-7 nm particles of [MFe2O4]n[O2CR]m

The physical properties of CdS thin films electrodeposited from aqueous diethylene glycol solutions.

Baranski AS, et al.

Journal of Applied Physics, 54(11), 6390-6394 (1983)

Formation of diethylene glycol as a side reaction during production of polyethylene terephthalate.

Hovenkamp SG and Munting JP.

Journal of Polymer Science Part A: Polymer Chemistry, 8(3), 679-682 (1970)

Synthesis of ordered arrays of discrete, partially crystalline titania nanotubes by Ti anodization using diethylene glycol electrolytes.

Yoriya S, et al.

Journal of Materials Chemistry, 18(28), 3332-3336 (2008)

Oxidation of diethylene glycol with ozone and modified Fenton processes.

Tuba Turan-Ertas et al.

Chemosphere, 47(3), 293-301 (2002-05-09)

This paper describes a study of oxidation of diethylene glycol (DEG) by ozone and modified Fenton process (hydrogen peroxide and ferric salt mixture) in aqueous solution. Both oxidation processes were able to oxidize relatively high concentrations of DEG effectively. DEG

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