Merck
所有图片(1)

439223

Sigma-Aldrich

二氯甲烷

suitable for HPLC, ≥99.9%, contains 40-150 ppm amylene as stabilizer

别名:
亚甲基氯
Empirical Formula (Hill Notation):
CH2Cl2
CAS号:
分子量:
84.93
Beilstein:
1730800
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

质量水平

100

蒸汽密度

2.9 (vs air)

蒸汽压

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)

测定

≥99.9%

形式

liquid

自燃温度

1223 °F

包含

40-150 ppm amylene as stabilizer

expl. lim.

22 %

technique(s)

HPLC: suitable

杂质

Free halogens, passes test
≤0.0003 meq/g Titr. acid
≤0.02% water

蒸发残留物

<0.0003%

颜色

APHA: ≤10
clear

折射率

n20/D 1.424 (lit.)

bp

39.8-40 °C (lit.)

mp

−97 °C (lit.)

密度

1.325 g/mL at 25 °C (lit.)

λ

H2O reference

紫外吸收

λ: 235 nm Amax: 1.00
λ: 240 nm Amax: 0.20
λ: 250 nm Amax: 0.05
λ: 260 nm Amax: 0.02
λ: 340-400 nm Amax: 0.01

适用性

passes test for HPLC

SMILES string

ClCCl

InChI

1S/CH2Cl2/c2-1-3/h1H2

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N

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相关类别

一般描述

Dichloromethane (DCM) is a chlorinated organic solvent with a wide range of industrial applications. It has C2v symmetry, low boiling point, high density and is immiscible in water. Degradation of DCM by various methods has been reported. Ultrasonic absorption studies of liquid DCM shows strong relaxation effect. A study reports the dielectric characteristics of DCM over a wide frequency range. DCM is susceptible to degradation with time, which can be suppressed by adding amylene as a stabilizer.

应用

Dichloromethane (Methylene chloride) may be used in the following processes:
  • To compose ultrasonic baths for cleaning and protection of aluminum coating over atactic-PMMA (poly(methyl methacrylate)) for dielectric studies.
  • Preparation of AMBF3 (ammoniomethyltrifluoroborate)-conjugated biomolecules.
  • Sample preparation for GC-MS (Gas Chromatography-Mass Spectrometry) analysis.
  • Preparation of ammonium acetate solvent mixture in combination with isopropanol, acetonitrile and water for mass spectral analysis of neutral lipids.
  • Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC and spectrophotometry.
  • As an extractant for 2,2-dithioethyl-4-(2′-pyridyl)-4-butyro-γ-lactone.
符合 ACS 规范。

包装

4, 4×4 L in PVC-coated bottle

制备说明

产品经过 0.2μm 过滤器过滤

象形图

Exclamation markHealth hazard

警示用语:

Warning

危险分类

Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Central nervous system

储存分类代码

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

闪点(F)

does not flash

闪点(C)

does not flash

个人防护装备

Eyeshields, Faceshields, Gloves

分析证书

请输入批号搜索分析证书(COA)。

原产地证书 (CofO)

请输入批号搜索原产地证书(COO)。

Rodney C Baker et al.
Methods in enzymology, 538, 89-105 (2014-02-18)
Mass spectrometry technology has enabled significant advances in detailing the alterations of the lipidome in response to pathological conditions or experimental manipulations. Lipids comprise a wide range of compounds with functions that include structural, intracellular signaling, trafficking, and storage. Characterization
Daniela Giustarini et al.
Nature protocols, 8(9), 1660-1669 (2013-08-10)
This protocol describes a procedure for determining glutathione (GSH) and glutathione disulfide (GSSG) concentrations in blood and other tissues. Artifactual oxidation to GSSG of 5-15% of the GSH found in a sample can occur during deproteination of biological samples with
Biodegradation of dichloromethane in an estuarine environment.
Krausova VI, et al.
Hydrobiologia, 559(1), 77-83 (2006)
Matthew J Walters et al.
Nature protocols, 2(7), 1825-1830 (2007-07-21)
A procedure for the preparation of optically pure alpha-keto-gamma-hydroxy carboxylic acids through stereospecific aldol addition catalyzed by pyruvate aldolases from the Entner-Doudoroff and the DeLey-Doudoroff glycolytic pathways is described. This highly versatile fragment serves as a precursor for a variety
Vitamin B12-mediated hydrodechlorination of dichloromethane by bimetallic Cu/Al particles.
Huang CC, et al.
Chemical Engineering Journal, 273, 413-420 (2015)

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