METHOD FOR DETERMINATION OF NITROGEN CONTENT IN LIQUID NITROGEN FERTILIZER BASED ON CARBAMIDE AND AMMONIA SALTPETER

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to analytical chemistry, in particular to a method u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 nitrogen in the liquid nitrogen u0443u0434u043eu0431u0440u0435u043du0438u0438 by carbamide and ammonium sat u0438u0442u0440u044b. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 simplification and shortening the time of analysis.the purpose of u0434u043eu0441u0442u0438u0433u0430u0435u0442u0441u00a0 by u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 mass proportion of ammonium nitrate u0442u0438u0442u0440u0438u043cu0435u0442 - u0440u0438u0447u0435u0441u043au0438u043c method, the density of the liquid u0443u0434u043eu0431u0440u0435u043du0438u00a0 in 25 & deg; and calculating the u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 nitrogen in the formula, n, a1 + -, r + 2, u04427Iu201e v - j. -.u043b.y + and u0437u0440 u04304u0445u0430u043cu0441 + + u0430u044c ames, where r is the density of liquid nitrogen u0443u0434u043eu0431u0440u0435u043du0438u00a0, kg / m hams - u043cu0430u0441u0441u043eu0432u0430u00a0 u0434u043eu043bu00a0 of ammonium nitrate in the liquid nitrogen u0443u0434u043eu0431u0440u0435u043du0438u0438%; and {- empirical u043au043eu044d u0444u0444u0438u0446u0438u0435u043du0442u044b with the following u0437u043du0430u0447u0435u043du0438u00a0: a (- 13448 - 10u0433) - (- 13468.u043au0433); and (u04361 11780 - kg, u043au04331); and, (17528 - u043au04335) - 1 (17646 - 10); and (4781610) t (50316 - 1u0441u0433) 5 a5