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270997

Sigma-Aldrich

Dichloromethane

anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer

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Synonym(s):
DCM, Methylene chloride
Empirical Formula (Hill Notation):
CH2Cl2
CAS Number:
Molecular Weight:
84.93
Beilstein/REAXYS Number:
1730800
EC Number:
MDL number:
UNSPSC Code:
12352101
PubChem Substance ID:
NACRES:
NA.21

grade

anhydrous

Quality Level

agency

suitable for EPA 1613

vapor density

2.9 (vs air)

vapor pressure

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)
6.86 psi ( 20 °C)

assay

≥99.8%

form

liquid

autoignition temp.

1223 °F

contains

40-150 ppm amylene as stabilizer

expl. lim.

22 %

technique(s)

gas chromatography (GC): suitable

impurities

≤0.001% water
≤0.005% water (100 mL pkg)

evapn. residue

<0.0005%

refractive index

n20/D 1.424 (lit.)

bp

39.8-40 °C (lit.)

mp

−95 °C (lit.)

density

1.325 g/mL at 25 °C (lit.)

SMILES string

ClCCl

InChI

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

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N

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General description

Dichloromethane has been tested as a solvent medium for the dipyridine-chromium(VI) oxide. Solubility was reported to be 12.5g/100ml. Role of quantity of TiO2 loading on activated carbon support employed in the photodecomposition of dichloromethane has been investigated.
Dichloromethane is a chlorinated organic solvent that is susceptible to degradation with time. This can be suppressed by adding amylene as a stabilizer.

Application

Dichloromethane has been used for the quantification of herbivore (gypsy moth) induced blueberry volatiles by gas chromatography (GC).
Dichloromethane may be used as a solvent for the oxidation of primary and secondary alcohols using dipyridine-chromium(VI) oxide. Lithium perchlorate suspended in DCM is an effective medium for Mukaiyama aldol reactions of aldehydes with silyl ketene acetal. DCM may also be used as solvent for the synthesis of 2-bromo-6-lithiopyridine from 2,6-dibromopyridine via lithium-bromine exchange reaction.

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

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

target_organs

Central nervous system

wgk_germany

WGK 2

flash_point_f

does not flash

flash_point_c

does not flash

ppe

Eyeshields, Faceshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cesar R Rodriguez-Saona
Journal of visualized experiments : JoVE, (58)(58), doi:10-doi:10 (2012-01-05)
Herbivore-induced plant volatiles (HIPVs) are commonly emitted from plants after herbivore attack. These HIPVs are mainly regulated by the defensive plant hormone jasmonic acid (JA) and its volatile derivative methyl jasmonate (MeJA). Over the past 3 decades researchers have documented
Efficient Preparation of 2-Bromo-6-lithiopyridine via Lithium? Bromine Exchange in Dichloromethane
Peterson MA & Mitchell JR
The Journal of Organic Chemistry, 62(23), 8237-8239 (1997)
Carbon-carbon bond formation catalyzed by lithium perchlorate in dichloromethane
Reetz MT & Fox DN
Tetrahedron Letters, 34(7), 1119-1122 (1993)
Effect of activated carbon content in TiO2-loaded activated carbon on photodegradation behaviors of dichloromethane.
Torimoto T, et al.
Journal of Photochemistry and Photobiology A: Chemistry, 103(1), 153-157 (1997)
Dipyridine-chromium (VI) oxide oxidation of alcohols in dichloromethane.
Collins JC, et al.
Tetrahedron Letters, 9(30), 3363-3366 (1968)

Articles

Substances are said to be miscible in one another if they dissolve to form a uniform solution. Bookmark or download our miscibility table for common lab solvents.

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