Merck
All Photos(4)

296082

Sigma-Aldrich

二乙醚

contains 1 ppm BHT as inhibitor, anhydrous, ≥99.7%

Synonym(s):
乙醚, 醚
Linear Formula:
(CH3CH2)2O
CAS Number:
Molecular Weight:
74.12
Beilstein:
1696894
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

等级

anhydrous

质量水平

蒸汽密度

2.6 (vs air)

蒸汽压

28.66 psi ( 55 °C)
8.56 psi ( 20 °C)

测定

≥99.7%

形式

liquid

自燃温度

320 °F

包含

1 ppm BHT as inhibitor

expl. lim.

36.5 %

杂质

<0.003% water
<0.005% water (100 mL pkg)

蒸发残留物

<0.0003%

颜色

colorless

折射率

n20/D 1.3530 (lit.)

bp

34.6 °C (lit.)
34.6 °C

mp

−116 °C (lit.)

密度

0.706 g/mL at 25 °C (lit.)

SMILES string

CCOCC

InChI

1S/C4H10O/c1-3-5-4-2/h3-4H2,1-2H3

InChI key

RTZKZFJDLAIYFH-UHFFFAOYSA-N

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This Item
346144
Diethyl ether contains 1&#160;ppm BHT as inhibitor, anhydrous, &#8805;99.7%

Sigma-Aldrich

296082

二乙醚

Diethyl ether reagent grade, &#8805;98%, contains &#8804;2% ethanol and &#8804;10ppm BHT as inhibitor

Sigma-Aldrich

346144

二乙醚

grade

anhydrous

grade

reagent grade

vapor density

2.6 (vs air)

vapor density

2.6 (vs air)

vapor pressure

28.66 psi ( 55 °C), 8.56 psi ( 20 °C)

vapor pressure

28.5 psi ( 55 °C), 8.38 psi ( 20 °C)

assay

≥99.7%

assay

≥98%

form

liquid

form

liquid

autoignition temp.

320 °F

autoignition temp.

320 °F, 356 °F

一般描述

Diethyl ether is a highly volatile and flammable organic solvent. On storing for a long time, DEE can form organic peroxides, which can be suppressed by adding butylated hydroxytoluene (BHT) as a stabilizer. BHT scavenges the free radicals required for the peroxide formation.

应用

Diethyl ether has been used as a solvent for the preparation of 3-formyl-2,2,5,5-tetramethyl-1-oxy-pyrroline from 3-(N-methoxy-N-methylcarbamoyl)-2,2,5,5-tetramethyl-1-oxy-pyrroline using DIBAL.

象形图

FlameExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Oral - Flam. Liq. 1 - STOT SE 3

靶器官

Respiratory system

补充剂危害

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(F)

-40.0 °F - closed cup

闪点(C)

-40 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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