Identification
CH2Cl2
M = 84,93 g/mol
CAS [75-09-2]
EC number: 200-838-9
Taric code: 2903 12 00
Synonyms
Methylene chloride, Chloromethylene
Applications
solvents, analytical chemistry.
Packaging
- 1000 ml
Specifications
assay (G.C.)…………………… min. 99,5 %
identity (IR-spectrum)…………… passes test
density (20º/4º)…………… 1,323 – 1,327
ethanol (G.C.)………………… max. 0,3 %
alkalinity………….. max. 0,0002 meq/g
residue on evaporation……………. max. 0,0003 %
acidity…………….. max. 0,0002 meq/g
water (K.F.)…………………. max. 0,01 %
min. transmission/max. absorbance in a 1,0 cm cell at wavelength: T(%) A (AU)
235 nm…………………….. 20 % 0,699 AU
238 nm…………………….. 50 % 0,301 AU
247 nm……………………. 90 % 0,046 AU
Microfiltered through membranes of pore diameter 0,22 µm
Physical data
- Density: 1,32 g/cm3
- Solub. in water: (20 ºC): 20 g/l
- Melting point: ~ -95 ºC
- Boiling point: 40 ºC
- Ignition temperature: 605 ºC
- Vapour pressure: (20 ºC) 475 hPa
- Viscosity: (20 ºC) 0,43 mPas
- Dipolar moment: (20 ºC) 1,6 Debye
- Dielectric const.: (20 ºC) 9,1
- Evap. heat: (40 ºC) 329 KJ/kg
- Saturation conc.: (20ºC) 1549 g/m3
- Expl. limit (upper): 22 Vol%
- Expl. limit (lower): 13 Vol%
- pH(20 ºC) 7