MT 37 - Isolation of active ingredient
Content Handbook F
Outline of method
37.1 Extraction with acetone
The active agent is extracted with acetone in a continuous extraction apparatus.
37.2 Extraction with petroleum spirit
37.3 Removal of solvents by distillation
The solvent is distilled off under vacuum, at room temperature, into a trap cooled with solid carbon dioxide. The residue is washed with water, and dried to constant weight.