DX0831

Dichloromethane

OmniSolv^®

• Synonym(s): Methylene Chloride, FM approval, Methylene chloride
• Empirical Formula (Hill Notation): CH₂Cl₂
• CAS Number: 75-09-2
• Molecular Weight: 84.93
• Beilstein/REAXYS Number: 1730800
• MDL number: MFCD00000881
• UNSPSC Code: 12352101
• EC Index Number: 200-838-9

Properties

• agency: suitable for EPA 1613
• Quality Level: 100
• vapor density: 2.9 (vs air)
• vapor pressure: 24.45 psi ( 55 °C); 6.83 psi ( 20 °C)
• product line: OmniSolv^®
• assay: ≥99.9% (GC)
• form: liquid
• autoignition temp.: 1223 °F
• expl. lim.: 22 %
• technique(s): HPLC: suitable; LC/MS: suitable; gas chromatography (GC): suitable
• impurities: ≤0.005% Water (H₂O); ≤0.2 μeq/g Titrable acid; ≤2 ng/L Capillary ECD responsive substances (as PCNB); ≤3 μg/L Capillary FID responsive substances (as decane)
• evapn. residue: ≤1 ppm
• color: APHA: ≤10
• refractive index: n20/D 1.424 (lit.)
• pH: 7 (20 °C)
• bp: 39.8-40 °C (lit.)
• mp: -95 °C; −95 °C (lit.)
• density: 1.325 g/mL at 25 °C (lit.)
• UV cutoff: ≤231 nm
• UV absorption: λ: 231 nm A_max: ≤1.00; λ: 235 nm A_max: ≤0.40; λ: 240 nm A_max: ≤0.20; λ: 250 nm A_max: ≤0.01; λ: 260 nm A_max: ≤0.005
• shipped in: ambient
• Storage temp.: room temp
• SMILES string: ClCCl
• InChI: 1S/CH2Cl2/c2-1-3/h1H2
• Inchi Key: YMWUJEATGCHHMB-UHFFFAOYSA-N

Description

General description

Dichloromethane, also known as Methylene chloride, is commonly used as a solvent with a wide range of applications. Due to high solubility, it is used to perform nonlinear transmission (NLT) measurements. Additionally, it is used as an effective extraction solvent, allowing for the separation and purification of desired substances from mixtures.

Application

Dichloromethane is used as a solvent:

• To prepare spectroscopic samples.
• For the dilution of s-diphenylaminostilbene which is used as a reference material for two-photon excited fluorescence (2PEF) measurement.

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Assay (GC)99.9% minCapillary ECD responsive substances (as PCNB)2ng/L maxCapillary FID responsive substances (as decane)3µg/L maxColor (APHA)10 maxEvaporation residue1ppm maxFiltered through 0.2 µm filterTo pass testFluorescence (as quinine base)500ppt maxFormClear liquidFree halogensTo pass testIdentity (IR-spectrum)ConformsRefractive index (at 20°C)Titrable acid0.2µeq/g maxUV Abs. at 231 nm1.00AU maxUV Abs. at 235 nm0.40AU maxUV Abs. at 240 nm0.20AU maxUV Abs. at 250 nm0.01AU maxUV Abs. at 260 nm0.005AU maxUV Cut-off231nm maxWater (H2O)0.005% max

Evaporation Number: 1.9

Legal Information

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

Safety Information

• Pictograms: GHS08,GHS07
• signalword: Warning
• hcodes: H315,H319,H336,H351
• pcodes: P202 - P261 - P264 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Central nervous system
• Storage Class: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• wgk_germany: WGK 2
• flash_point_f: does not flash
• flash_point_c: does not flash