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03128

Supelco

Diethylene glycol

analytical standard

Synonym(s):
2,2′-Oxydiethanol, 2-Hydroxyethyl ether, Diglycol, Bis(2-hydroxyethyl) ether
Linear Formula:
(HOCH2CH2)2O
CAS Number:
Molecular Weight:
106.12
Beilstein:
969209
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

Quality Level

grade

analytical standard

vapor density

2.14 (vs air)

vapor pressure

0.01 mmHg ( 20 °C)

description

non-ionic

assay

≥99.5% (GC)

form

viscous liquid (clear)

autoignition temp.

442 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

2-12.3 %

application(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

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

bp

245 °C (lit.)

mp

−10 °C (lit.)

density

1.115-1.117 g/mL at 20 °C
1.118 g/mL at 25 °C (lit.)

Featured Industry

Cleaning Products
Cosmetics
Environmental
Food and Beverages
Personal Care

format

neat

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 is a colourless liquid which is mostly used in manufacturing other chemicals. It is denser than water. It can be formed as a side reaction during ester interchange of dimethyl terephthalate with ethylene glycol, it can also be formed when terephthalic acid undergoes direct esterification with ethylene glycol.

Application

Diethylene glycol may be used as an analytical reference standard for the determination of the analyte in toothpaste, poly(ethylene terephthalate) yarns, pharmaceutical products and human biological samples by various chromatography techniques.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

10 - Combustible liquids

WGK Germany

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

Certificate of Origin

Formation of diethylene glycol as a side reaction during production of polyethylene terephthalate.
Hovenkamp, S. G., and J. P. Munting.
Journal of Polymer Science. Part A-1, Polymer Chemistry, 8.3, 679-682 (1970)
Identification and quantification of ethylene glycol and diethylene glycol in plasma using gas chromatography-mass spectrometry
Maurer Hans and Kessler C
Archives of Toxicology, 62(1), 66-69 (1988)
Fast determination of toxic diethylene glycol in toothpaste by ultra-performance liquid chromatography-time of flight mass spectrometry
Hernandez F, et al.
Analytical and Bioanalytical Chemistry, 391(3), 1021-1021 (2008)
Gas chromatographic determination of diethylene glycol in poly (ethylene terephthalate)
Ponder LH
Analytical Chemistry, 40(1), 229-231 (1968)
Validated gas chromatographic-mass spectrometric assay for determination of the antifreezes ethylene glycol and diethylene glycol in human plasma after microwave-assisted pivalylation
Maurer HH, et al.
Journal of Chromatography. B, Biomedical Applications, 754(2), 401-409 (2001)

Protocols

GC Analysis of Glycols on Nukol™

99%; Glycerol, ≥99.5%; Tetraethylene glycol, 99%

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