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本文研究了含硼四元水盐体系ＭｇＢ４Ｏ７－ＭｇＯ４－ＭｇＣｌ２－Ｈ２Ｏ及次级体系ＭｇＢ４Ｏ７－ＭｇＳＯ４－Ｈ２Ｏ和ＭｇＢ４Ｏ７－ＭｇＣｌ２－Ｈ２Ｏ在２９８．１５Ｋ时不同离子强度下的稀释热和热容，并将Ｄｅｂｙｅ－Ｈｕｃｋｅｌ极限公式应用到多元电解质稀溶液中，获得从高离子强度到低离子强度Ｉ为１９－０．０００１范围内的相对表观摩尔焓．
In this paper, the dilution heat and heat capacity of boron-containing quaternary ammonium salt system MgB4O7-MgO4-MgCl2-H2O and the secondary systems MgB4O7-MgSO4-H2O and MgB4O7-MgCl2-H2O at different ionic strengths at 298.15K were studied. The Debye-Huckel limit formula was applied to dilute solutions of polyelectrolytes to obtain relative apparent molar enthalpies ranging from high ionic strength to low ionic strength I of 19-0.0001.