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Merck
CN

H26456

Diethylene glycol

99%, liquid, viscous liquid, suitable for synthesis, ReagentPlus®

Synonym(s):

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

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About This Item

Linear Formula:
(HOCH2CH2)2O
CAS Number:
111-46-6
Molecular Weight:
106.12
NACRES:
NA.21
PubChem Substance ID:
24895513
UNSPSC Code:
12352104
EC Number:
203-872-2
MDL number:
MFCD00002882
Beilstein/REAXYS Number:
969209
Assay:
99%
Bp:
245 °C (lit.)
Vapor pressure:
0.01 mmHg ( 20 °C)

Key Documents

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Product Name

Diethylene glycol, ReagentPlus®, 99%

InChI

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

InChI key

MTHSVFCYNBDYFN-UHFFFAOYSA-N

SMILES string

OCCOCCO

vapor density

2.14 (vs air)

vapor pressure

0.01 mmHg ( 20 °C)

description

non-ionic

product line

ReagentPlus®

assay

99%

form

liquid
viscous liquid

autoignition temp.

442 °F

expl. lim.

2-12.3 %

dilution

(for general lab use)

refractive index

n20/D 1.447 (lit.)

pH

5.0-8 (20 °C, 500 g/L)

bp

245 °C (lit.)

mp

−10 °C (lit.)

density

1.118 g/mL at 25 °C (lit.)

functional group

ether
hydroxyl

Quality Level

200

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Application

Diethylene glycol may be used in the preparation of bis(2,2′:6′,2″-terpyrid-4′-yl) diethylene glycol, which can act as a precursor for producing water-soluble coordination polymers.

General description

Diethylene glycol (DEG) is employed as a comonomer during the synthesis of poly (ethylene terephthalate) (PET). It undergoes oxidation on treatment with nitric acid. Its toxicity has been assessed. The ozonation and modified Fenton oxidation of DEG have been investigated.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

280.4 °F - closed cup

flash_point_c

138 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
MKDB0186
MKDB0185
SDBB6526
SDBB6400
MKCZ7628

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Degradation mechanism of diethylene glycol units in a terephthalate polymer.
Lecomte HA and Liggat. JJ.
Polymer Degradation and Stability, 91(4), 681-689 (2006)
Diethylene glycol poisoning.
Schep LJ, et al.
Clinical Toxicology, 47(6), 525-535 (2009)
Metallo-supramolecular diethylene glycol: water-soluble reversible polymers.
Schmatloch S, et al.
Macromolecular Rapid Communications, 23(16), 957-961 (2002)
Oxidation of diethylene glycol with nitric acid.
Svetlakov NV, et al.
Russ. J. Org. Chem., 38(5), 753-753 (2002)
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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