二氯甲烷，Dichloromethane [DCM]；for spectroscopy Uvasol®, ≥99.9% (GC)

图片 二氯甲烷，Dichloromethane [DCM]；for spectroscopy Uvasol®, ≥99.9% (GC)
别名：1060480500；1060482500；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）: 1.06048
CAS号: 75-09-2
MDL号: MFCD00000881
签订合同 √ 正规发票 √ 技术支持 √ 质量保障 √ 全程可追溯 √
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说明

一般描述

Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol<TMSYMBOL></TMSYMBOL> solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol<TMSYMBOL></TMSYMBOL> solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified.
 

分析说明

Evaporation Number: 1.9
Purity (GC): ≥ 99.9 %
Evaporation residue: ≤ 0.0002 %
Water: ≤ 0.01 %
Color: ≤ 10 Hazen
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Fluorescence (as quinine at 254 nm): ≤ 1.0 ppb
Fluorescence (as quinine at 365 nm): ≤ 1.0 ppb
Transmission (at 235 nm): ≥ 30 %
Transmission (at 240 nm): ≥ 70 %
Transmission (at 245 nm): ≥ 85 %
Transmission (at 250 nm): ≥ 95 %
Transmission (from 255 nm): ≥ 98 %
Absorbance (at 235 nm): ≤ 0.52
Absorbance (at 240 nm): ≤ 0.16
Absorbance (at 245 nm): ≤ 0.07
Absorbance (at 250 nm): ≤ 0.02
Absorbance (from 255 nm): ≤ 0.01
The product is stabilized with about 50 ppm 2-Methyl-2-butene
Meet the requirements of "Specific use spectroscopy" according ACS
 

法律信息

UVASOL 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)

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

~50 ppm 2-methyl-2-butene as stabilizer

expl. lim.

22 %

technique(s)

UV/Vis spectroscopy: suitable

杂质

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

蒸发残留物

≤0.0002%

颜色

APHA: ≤10

透射比

235 nm, ≥30%
240 nm, ≥70%
245 nm, ≥85%
250 nm, ≥95%
255 nm, ≥98%

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.)

密度

1.325 g/mL at 25 °C (lit.)

紫外吸收

λ: 235 nm Amax: ≤0.52
λ: 240 nm Amax: ≤0.16
λ: 245 nm Amax: ≤0.07
λ: 250 nm Amax: ≤0.02
λ: 255 nm Amax: ≤0.01

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
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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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