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The thermal behaviour of ammonium oxofluorotitanates (NH4)3TiOF5, (NH4)2TiOF4 and NH4TiOF3 was investigated by thermoanalytical, X-ray and IR spectroscopic methods. The first decomposition stages under quasi-isobaric conditions are characterized by the formation of (NH4)2TiF6 and ammonium oxofluorotitanate with the less content of ammonium and fluorine than in the initial compound. The decomposition process is accompanied by the Ti(IV) reducing due to ammonia evolved. The new ammonium oxofluorotitanate of high volatility was isolated and characterized. Ammonium-containing non-stoichiometric titanium oxyfluorides are the final products of thermal decomposition of ammonium oxofluorotitanates.

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Journal of Radioanalytical and Nuclear Chemistry
Authors: L. Smakhtin, A. Kurinov, A. Merkulov, R. Novgorodtsev, E. Schokel, N. Katargin, and A. Lisitsin


This paper describes simple algorithms for evaluating gamma-ray spectra, readily applicable to small computers. A comparative assessment of the accuracy of the existing programs for experimental data analysis is presented. The use of “Nairi-K” computers suitable for “on-line” operation with multichannel analyzers enables as many as 300 element determinations to be carried out in a 7-hour working day.

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