nitrous ether gradually distils over on the application of a gentle heat.
These experiments succeed better with nitrous ether, because it evaporates in a lower temperature than sulphuric ether.
With glycerin it gives a clear solution, and with nitrous ether a bluish-green gelatinous mass.
Infusion of digitalis, with spirit of nitrous ether or with acetate of potassium, may also be used with advantage.
From sulphuric acid and nitrous ether, equal parts, as above.