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Merck
CN

32160

二乙二醇

≥99.0% (GC), viscous liquid (clear), suitable for GC/GC, puriss. p.a.

别名:

2,2′-氧代二乙醇, 2-羟基乙基醚, 二(羟乙基)醚, 二甘醇

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关于此项目

线性分子式:
(HOCH2CH2)2O
化学文摘社编号:
111-46-6
分子量:
106.12
NACRES:
NA.21
PubChem Substance ID:
57648659
UNSPSC Code:
12352100
EC Number:
203-872-2
MDL number:
MFCD00002882
Beilstein/REAXYS Number:
969209
Assay:
≥99.0% (GC)
Technique(s):
GC/GC: suitable
Bp:
245  °C (473 °F)
245 °C (lit.)
Vapor pressure:
0.01 mmHg ( 20 °C)

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产品名称

二乙二醇, puriss. p.a., ≥99.0% (GC), colorless

InChI key

MTHSVFCYNBDYFN-UHFFFAOYSA-N

InChI

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

SMILES string

OCCOCCO

vapor density

2.14 (vs air)

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 %

technique(s)

GC/GC: suitable

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

Quality Level

200

bp

245  °C (473 °F)
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

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相关类别

Application

二甘醇可用于电沉积硫化镉 (CdSe) 薄膜。可用于合成氟离子电解质，用于制备自组织二氧化钛纳米管阵列。

General description

对苯二甲酸与乙二醇酯化反应生成的二甘醇是其副反应产物。在碱性氢氧化物存在下，易与 3d 转换金属阳离子形成配合物。其溶液广泛用于防冻剂和润滑应用。研究了用改进的 Fenton 法（双氧水和铁盐的混合物）臭氧氧化降解 DEG。

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

存储类别

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCN8614
0000443306
0000443306
BCCN3374
0000427338

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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)
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)
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
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)
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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