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本文测定了三元体系NH_4Cl-SbCl_3-HOAc在25℃时平衡态和介稳态的溶度及部分饱和溶液的折光指数,并绘制了相应的溶度图.体系在稳定平衡态时有五种固相:NH_4Cl、SbCl_3(原始盐),5NH_4Cl·SbCl_3(1)、2NH_4Cl·SbCl_3·1.5HOAc(2)相5NH_4Cl·3SbCl_3·2.5HOAc(3)(复盐).一支介稳溶度曲线所对应的固相是3NH_4Cl·SbCl_3(4).本文初步描述了以上四种复盐的一些物理化学性质.体系中合成的二元复盐1和溶剂合复盐2与3文献中均未见报道.本文提供了一种制备3NH_4Cl·SbCl_3的新方法。
In this paper, the equilibrium and metastable solubility of the ternary system NH_4Cl-SbCl_3-HOAc at 25 ℃ and the refractive index of the partially saturated solution were measured and the corresponding solubility diagrams were plotted. The system has five stable equilibrium states Solid phase: NH4Cl, SbCl3 (original salt), 5NH4ClSbCl3 (1), 2NH4ClSbCl3 1.5HOAc (2) phase 5NH4Cl3SbCl3 2.5HOAc (double salt) The corresponding solid phase is 3NH_4Cl · SbCl_3 (4) .In this paper, some physicochemical properties of the above four kinds of double salts are described. None of the binary binary salts 1 and 2 and 3 synthesized in the system have been reported This article provides a new method to prepare 3NH_4Cl · SbCl_3.