32222

Sigma-Aldrich

Dichloromethane

puriss. p.a., ACS reagent, reag. ISO, ≥99.9% (GC)

Synonym(s):
Methylene chloride, methylene chloride
Empirical Formula (Hill Notation):
CH2Cl2
CAS Number:
Molecular Weight:
84.93
Beilstein/REAXYS Number:
1730800
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.04

Quality Level

grade

ACS reagent
puriss. p.a.

Agency/Method

reag. ISO

vapor density

2.9 (vs air)

vapor pressure

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)

assay

≥99.9% (GC)

form

liquid

autoignition temp.

1223 °F

contains

~25 mg/L amylene as stabilizer

expl. lim.

22 %

impurities

≤0.00002% free chlorine (Cl)
≤0.0005% formaldehyde
≤0.001% free acid (as HCl)
≤0.001% non-volatile matter
≤0.01% chloroform (GC)
≤0.01% tetrachloromethane (GC)
≤0.01% water (Karl Fischer)
≤0.05% ethanol (GC)

refractive index

n20/D 1.4235-1.4245
n20/D 1.424 (lit.)

bp

39.8-40 °C (lit.)

mp

−97 °C (lit.)

density

1.320-1.330 g/L at 20 °C
1.325 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.5 mg/kg

cation traces

Al: ≤0.5 mg/kg
B: ≤0.02 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.1 mg/kg
K: ≤0.5 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.1 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sn: ≤0.1 mg/kg
Sr: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

SMILES string

ClCCl

suitability

passes test for reaction against H2SO4

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 dipyridine-chromium(VI) oxide. Solubility was reported to be 12.5g/100ml. The apparent adsorption constant of the TiO2 loaded activated carbon for dichloromethane was found to be inversely proportional to the quantity of loaded TiO2.

Application

Dichloromethane may be used as a solvent for the preparation of stock solutions of carotenoids. It may be employed as a solvent in the synthesis of polylactide-based (PLA) thin films.

Other Notes

The article number 32222-4X2.5L will be discontinued. Please order the single bottle 32222-2.5L which is physically identical with the same exact specifications.
The article number 32222-4X2.5L-M will be discontinued. Please order the single bottle 32222-2.5L-M which is physically identical with the same exact specifications.
The article number 32222-6X1L will be discontinued. Please order the single bottle 32222-1L which is physically identical with the same exact specifications.
The article number 32222-6X1L-M will be discontinued. Please order the single bottle 32222-1L-M which is physically identical with the same exact specifications.

Pictograms

Exclamation markHealth hazard

Signal Word

Warning

Hazard Statements

Target Organs

Central nervous system

RIDADR

UN 1593 6.1 / PGIII

WGK Germany

WGK 2

Flash Point(F)

does not flash

Flash Point(C)

does not flash

Certificate of Analysis

Certificate of Origin

R Re et al.
Free radical biology & medicine, 26(9-10), 1231-1237 (1999-06-25)
A method for the screening of antioxidant activity is reported as a decolorization assay applicable to both lipophilic and hydrophilic antioxidants, including flavonoids, hydroxycinnamates, carotenoids, and plasma antioxidants. The pre-formed radical monocation of 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS*+) is generated by oxidation...
V Melissinaki et al.
Biofabrication, 3(4), 045005-045005 (2011-09-21)
This study reports on the production of high-resolution 3D structures of polylactide-based materials via multi-photon polymerization and explores their use as neural tissue engineering scaffolds. To achieve this, a liquid polylactide resin was synthesized in house and rendered photocurable via...
Dipyridine-chromium (VI) oxide oxidation of alcohols in dichloromethane.
Collins JC, et al.
Tetrahedron Letters, 9(30), 3363-3366 (1968)
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)
Myat Noe Hsu et al.
Biomicrofluidics, 9(5), 052601-052601 (2015-04-01)
The poor solubility of many newly discovered drugs has resulted in numerous challenges for the time-controlled release of therapeutics. In this study, an advanced drug delivery platform to encapsulate and deliver hydrophobic drugs, consisting of poly (lactic-co-glycolic acid) (PLGA) nanoparticles...

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