FIELD: production of calcium nitrate. SUBSTANCE: samples of calcium nitrate are solved with subsequent complexation titration of calcium ions by solution of trilon B in ammonia-buffer mixture with indicator. While sample is prepared for titration it is treated with ethyl alcohol in ratios 1: 19.7-39.4, balancing part is solved in hydrochloric acid and concentration of calcium nitrate in alcohol solution and of calcium carbonate in acidic solution are found by titration method.. EFFECT: increased accuracy and authenticity of results, correction of dependence of determination error on ratios of components in analyzed mixture. 1 tbl
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