Abstract
AFTER having studied the low-temperature transformations of the ammonium halides, it was of interest to examine the influence of a substitution of the ordinary hydrogen in the ammonium group by heavy hydrogen. We started with ND4Cl, obtained in the following way, working in evacuated apparatus. DCl prepared in a vacuum from D2O (99.97 per cent) and phosphorus pentachloride, was after several distillations finally dissolved in D2O. ND3 prepared from D2O and magnesium nitride (Mg3N2) and also several times distilled was dissolved in the DCl solution. This solution was evaporated in a stream of dry pure nitrogen, and then the solid ND4Cl was dried in a vacuum desiccator over phosphorus pentoxide. No impurities could be detected in the ND4Cl prepared in this way.
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Z. phys. Chem., A, 166, 97 (1933).
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SMITS, A., MULLER, G. The Low-temperature Transformation of Heavy Ammonium Chloride. Nature 139, 804 (1937). https://doi.org/10.1038/139804a0
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DOI: https://doi.org/10.1038/139804a0
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