Chemical test for Myrrh
Chemical test for Myrrh Preliminary observations: Size and shape: rounded or irregular tears or masses Odour: agrreable and aromatic Colour: Externally reddish brown, internally brownish Taste: Aromatic, bitter and acrid Extra feature: Breaks with a brittle fracture, with somewhat granular, translucent surface Solubility: Insoluble in water, but soluble in chloroform and ether Chemical test: SI.No. Test Observation Inference 1. Triturate with water Yellowish brown emulsion Myrrh may be present 2. Extract small portion of powdered drug with solvent ether, evaporate the extract in such a way that the residue is left as a resinous thin film, pass the vapors of bromine over the film produced . A violet colour is produced Myrrh may be present 3. Dry etherial extract when treated with bromine vapours Reddish colour obtained M...