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On the contrary, the gas issuing from the platinum rapidly turned Nessler reagent brown, and in a few minutes turned faintly acid litmus solution blue; the odor of NH3 was also perceptible. In one experiment 0.0144 gramme of ammonia was formed in two hours and a half.
Some experiments, in which pure nitrogen was passed over heated copper containing occluded hydrogen, suggested to the author the possibility of the formation of ammonia; only minute traces were formed. The gases were passed, before entering the tube containing the platinum, through a potash bulb containing Nessler reagent, which remained colorless.
Nessler has little more than a vein of simple melody to recommend him, and his works have had no success beyond the frontiers of Germany; but at home his flow of rather feeble sentimentality has endeared him to every susceptible heart in the Fatherland.
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