Summary
Large, perfect crystals of urea nitrate were obtained by the addition of concentrated nitric acid to an aqueous solution of the salt, followed by spontaneous evaporation. The crystal angles have been measured.
Zusammenfassung
Große, gut ausgebildete Kristalle von Harnstoffnitrat erhält man bei Zugabe konz. Salpetersäure zu einer wäßrigen Lösung des Salzes und nachheriger Spontanverdampfung. Die Kristallwinkel wurden gemessen.
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Literatur
A. C. Shead, Mikrochim. Acta [Wien]1965, 274, 1167.
A. C. Shead, Ind. Eng. Chem., Analyt. Ed.9, 496 (1937).
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Shead, A.C. Spontaneous evaporation of dilute saturated solutions. Urea nitrate crystals from saturated solution in strong nitric acid. Mikrochim Acta 55, 936–938 (1967). https://doi.org/10.1007/BF01216839
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DOI: https://doi.org/10.1007/BF01216839