##
I
3
25
carbon monoxide.
The first bottle of acid absorbent was coloured a deep orange,
the next much less so,
and the third was almost colourless. This last
gave no indication of any alkaloid being present, when tested with iodine solution.
The first two bottles were mixed together, shaken with ether to remove tarry matter, and the morphine, pyridine bases, and ammonia, determined in half of the mixture. Recourse was had to Pontag's method for the separation of pyridine bases and ammonia as described in "Technical Methods of Chemical Analysis", Lange and Keane, Vol. I pt II, p 910. The acid solution was made alkaline and the pyridine and ammonia distilled off with steam from the morphine remaining in the receiver containing acetic acid. The distillate was again subjected to steam distillation to remove the pyridine bases from the acetate, the distillation being continued until a drop or two of the distillate, warmed with potash solution, ceased to evolve the odour of pyridine. This last distillate was then rendered alkaline, and the pyridine bases distilled off, and estimated by N sulphuric acid solution, and methyl orange. In order to observe the general nature of these pyridine bases, a portion of the solution not required for the titration was treated with platinum perchloride. The platinum salt obtained was a mixture, partly crystalline, partly amorphous. Being extremely small in amount, any separation of bases was ...
4.0
mon
num
I
3
25
carbon monoxide.
The first bottle of acid absorbent was coloured a deep orange,
the next much less eo,
and the third was almost colourless. This last
gave
in one
in
the relort into a
1
ave no indication of any alkaloid being fresent, when tested with iodine solution. "The first two bottles were mixed Esjether, akaken with ether to remove torry matter, and the morphine, pyridine bases, and ammonia, determined
half of the mixture. Recourse was had to Pontag's method for the reparation of pyridine bases and ammonia as described in. "Technical Methods of Chemical Analysis"," Lange and Keane, Vol. I pt II, p 910. The acid solution was made alkaline and the pyridin
and ammonia distilled off with steam from the morphine remaining
receiver containing acetic acid. The distillate was again subjected to steam distillation to remove the pyridine bases from the acetate, the distillation being continues until a drop or two of the distillate, warmed with potosh solation, ceased to evolve the odour of pyridine. This last distillate was then renderes alkaline, and the pyridine bases distilled off, and estimated pyridine by N sulphuric acid solution, and mathyl orange. In order to observe the general nature of these pyridine bases, a portion of the solution not required for the litration was treated with platinum perchlonde. The platinum salt obtained was a mixture. partly crystalline, partly amorphous Being extremely small in amount, any separation of bases was
4.0
mon
num
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