Merck
All Photos(2)

1.06048

Supelco

Dichloromethane

for spectroscopy Uvasol®

Synonym(s):
DCM, Methylene chloride, Methylene dichloride, Methylene chloride
Empirical Formula (Hill Notation):
CH2Cl2
CAS Number:
Molecular Weight:
84.93
Beilstein:
1730800
MDL number:
EC Index Number:
200-838-9

vapor density

2.9 (vs air)

Quality Level

vapor pressure

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)

assay

≥99.9% (GC)

form

liquid

autoignition temp.

1223 °F
605 °C (DIN 51794)

potency

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

contains

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

expl. lim.

22 %

technique(s)

UV/Vis spectroscopy: suitable

impurities

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

evapn. residue

≤0.0002%

color

APHA: ≤10

transmittance

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

refractive index

n20/D 1.424 (lit.)

pH

7 (20 °C)

bp

39.8-40 °C (lit.)

mp

-95 °C
−97 °C (lit.)

density

1.325 g/mL at 25 °C (lit.)

UV absorption

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

storage temp.

2-30°C

SMILES string

ClCCl

InChI

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

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N

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General description

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.

Analysis Note

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

Legal Information

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

Pictograms

Exclamation markHealth hazard

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Central nervous system

Storage Class Code

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

WGK

WGK 2

Flash Point(F)

does not flash

Flash Point(C)

does not flash

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