Summary
A method of preparing sodium nitrate crystals suitable for profile angle measurement is described and the values of those angles was determined as 102° 38′ for the obtuse angle of the rhomb and 77° 36′ for the acute angle of this parallelogram.
Zusammenfassung
Die Herstellung von Natriumnitratkristallen für die Profilwinkelmessung wurde beschrieben. Der stumpfe Winkel des Parallelogramms beträgt 102° 38′, der spitze Winkel 77° 36′.
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References
A.C. Shead, Mikrochim. Acta [Wien]1965, 274.
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Shead, A.C. Microcrystallization by spontaneous evaporation of dilute saturated solutions of difficultly soluble substances. Sodium nitrate from concentrated nitric acid. Mikrochim Acta 55, 1077–1079 (1967). https://doi.org/10.1007/BF01225945
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DOI: https://doi.org/10.1007/BF01225945