The interaction of sulfate with some open chain polyammonium cations was quantitatively studied by potentiometric (H~+-glass electrode) measurements. Enthalpy changes, for some systems, were determined calorimetrically. Some literature data were also considered in the discussion of results. In all the systems, A(SO_4)H_i~((i-2)) species are formed (i = 1, …m; m = maximum protonation degree of amine), and for i >= 4, also A(SO_4)_2H_i~((i-4)) species were found. Both the stability and the formation enthalpies, for these complexes, are a direct function of the charges of reactants, and some empirical relationships are reported. A small, but significant, difference was found between the stability of unsubstituted and N-alkylsubstituted polyammonium cation-sulfate complexes.
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机译：通过电位（H〜+玻璃电极）测量，定量研究了硫酸盐与一些开链聚铵阳离子的相互作用。对于某些系统，焓变是通过量热法确定的。在结果讨论中还考虑了一些文献数据。在所有系统中，都会形成A（SO_4）H_i〜（（i-2））物种（i = 1，…m; m =胺的最大质子化程度），并且对于i> = 4，A（SO_4）发现了_2H_i〜（（i-4））种。这些配合物的稳定性和形成焓均是反应物电荷的直接函数，并且已报道了一些经验关系。发现未取代的和N-烷基取代的聚铵阳离子-硫酸盐配合物的稳定性之间存在微小但显着的差异。
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