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Merck

32160

Sigma-Aldrich

二乙二醇

puriss. p.a., ≥99.0% (GC), colorless

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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About This Item

线性分子式:
(HOCH2CH2)2O
CAS号:
分子量:
106.12
Beilstein:
969209
EC號碼:
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.21

蒸汽密度

2.14 (vs air)

品質等級

蒸汽壓力

0.01 mmHg ( 20 °C)

描述

non-ionic

等級

puriss. p.a.

化驗

≥99.0% (GC)

形狀

viscous liquid (clear)

自燃溫度

442 °F

expl. lim.

2-12.3 %

雜質

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

顏色

colorless
APHA: ≤25

折射率

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

bp

245 °C (lit.)

mp

−10 °C (lit.)

密度

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

正離子痕跡

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 字串

OCCOCCO

InChI

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

InChI 密鑰

MTHSVFCYNBDYFN-UHFFFAOYSA-N

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一般說明

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。

應用

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。

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Acute Tox. 4 Oral

儲存類別代碼

10 - Combustible liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

280.4 °F - closed cup

閃點(°C)

138 °C - closed cup

個人防護裝備

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


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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)
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)
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)
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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