二氯甲烷，Dichloromethane [DCM]；for liquid chromatography LiChrosolv®, ≥99.9% (GC)

图片 二氯甲烷，Dichloromethane [DCM]；for liquid chromatography LiChrosolv®, ≥99.9% (GC)
别名：1060441000；1060442500；1060444000；亚甲基氯；双氯甲烷；Methylene chloride；methylene chloride

Empirical Formula (Hill Notation): CH2Cl2 CAS号: 75-09-2 分子量: 84.93 Beilstein: 1730800 MDL编号: MFCD00000881 EC索引号: 200-838-9
制造商品牌: 默克 Merck , 色谱科 Supelco , 西格玛 Sigma-Aldrich
货号（SKU）: 1.06044
CAS号: 75-09-2
MDL号: MFCD00000881
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说明

一般描述

LiChrosolv® solvents exhibit high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level. This makes them ideal for reproducible separations.
We are committed to bringing you Greener Alternative Products which adhere to one or more of The 12 Principles of Greener Chemistry. This solution of Ethyl acetate/Ethanol is a greener alternative to dichloromethane for chromatographic purification and thus has been enhanced for Safer Solvents and Auxiliaries. Click here for more information.
 

应用

Intended for HPLC and UHPLC-MS applications.
 

特点和优势

  • suitability tested and specified for UHPLC-MS and UHPLC-UV: for analytical flexibility
  • specified quality in positive and negative in positive and negative electrospray ionization (ESI) and atmospheric-pressure chemical ionization-mass spectrometry (APCI-MS) for lowest detection limits and confidence in analyses for all important MS modes (test 1)
    —ESI/APCI (+) < 2 ppb
    —ESI/APCI (-) < 10 ppb
  • lowest impurity profile: for interference-free baselines (test 2)
  • microfiltered through 0.2 μm filter (test 3) to provide:
    —a long lifespan to filters and mechanical parts of HPLC systems
    —reduced risk of column clogging
  • packed in borosilicate glass bottles for minimum metal ion contaminations
  • lowest levels of trace metal impurities for a minimum metal ion adduct formation
    —< 5ppb
  • lowest level of polyethylene glycol (PEG) impurities in UHPLC-MS solvent lineup (PEG S/N signal-to-noise-ratio < 50)

制备说明

产品已经过0.2 μm过滤器过滤
 

分析说明

纯度 (GC)： ≥ 99.9 %
一致性（IR）：符合
酸度： ≤ 0.0002 meq/g
碱度： ≤ 0.0002 meq/g
透射率（240 nm）： ≥ 70 %
透射率（245 nm）： ≥ 90 %
透射率（从260起 nm开始）： ≥ 99 %
蒸发残留物： ≤ 5.0 mg/l
水： ≤ 0.01％
该产品添加2-甲基-2-丁烯稳定。
经0.2 µm过滤器过滤
 

法律信息

LICHROSOLV is a registered trademark of Merck KGaA, Darmstadt, Germany
 
 

属性

蒸汽密度

2.9 (vs air)

质量水平

100

蒸汽压

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)

产品线

LiChrosolv®

等级

isocratic

测定

≥99.9% (GC)

形式

liquid

自燃温度

1223 °F
605 °C (DIN 51794)

效能

1600 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)

包含

2-methyl-2-butene as stabilizer

expl. lim.

22 %

technique(s)

HPLC: suitable

杂质

≤0.0002 meq/g Acidity
≤0.0002 meq/g Alkalinity
≤0.01% Water

蒸发残留物

≤5.0 mg/L

透射比

240 nm, ≥70%
245 nm, ≥90%
260 nm, ≥99%

折射率

n20/D 1.424 (lit.)

pH值（酸碱度）

7 (20 °C)

bp

39.8-40 °C (lit.)

mp

-95 °C
−97 °C (lit.)

溶解性

20 g/L

密度

1.325 g/mL at 25 °C (lit.)

储存温度

2-30°C

SMILES string

ClCCl

InChI

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

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N

 

安全信息

象形图

Exclamation markHealth hazard
GHS07,GHS08

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

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 20 | 欧洲Eur. ≥ 16 | 東京Tokyo ≥ 5 | 香港与北京 ≥ 20
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