Methylene chloride [75-09-2]
Methylene chloride is mainly used as a reaction and extraction solvent, as well as a low polar eluent in liquid chromatography (including HPLC). Being much less harmful than chloroform, it has largely displaced this solvent from organic preparation.
Color max. 10 j. Hz
Water (KF) max. 0.02%
Free acids (HCl) max. 0.001%
Free halogen as per recipe
Non-volatile substances max. 0.001%
UV – transmission (1cm, water):
235 nm min. 40%
240 nm min. 75%
250 nm min. 98%
260 nm min. 99%
254 nm max. 1 ppb
365 nm max. 1 ppb
Stabilizer (amylene) 20 ppm
Labels for hazardous chemicals and mixtures that are part of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The pictograms recommended by GHS have the shape of a square set on the top. They should contain a black symbol on a white background with a red border.
Priority rules to be observed in connection with the labeling of a substance:
– the skull and crossbones, the exclamation mark pictogram should not be added.
– corrosivity, the pictogram exclamation mark should not be added if it concerns eye or skin irritation.
– health hazard determining respiratory sensitization, the exclamation mark pictogram should not be added if it concerns skin sensitization or irritation to eyes or skin.
Source: GHS pictograms