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在60℃和恒定离子强度下,用平衡法研究了0.004mol dm~(-3)Cr(NO_3)_3在三种不同浓度顺丁烯二酸H_2A(0.008,0.010,0.014mol dm~(-3)的水溶液中的状态,用计算机拟合和p.q.r分析方法得到了[Cr(OH)A_2]~(2-),[Cr_2(OH)A_2]~+[Cr_3(OH)_2A_2]~+和CrA_3~(3-)四种水解产物,并计算了其平衡常数,在我们系列工作中研究了在宽广的Cr~(3+)和顺丁烯二酸浓度下Cr~(3+)的状态,共生成11种配合物,本文对其形成规律进行了讨论.
The effects of 0.004 mol dm -3 Cr (NO 3) 3 at different concentrations of maleic acid H 2 A (0.008,0.010 and 0.014 mol dm -3) at 60 ℃ and constant ionic strength (Cr (OH) A_2] ~ [Cr_2 (OH) A_2] ~ [Cr_3 (OH) _2A_2] ~ + and CrA_3 were obtained by computer simulation and pqr analysis. ~ (3-) hydrolysates were calculated and their equilibrium constants were calculated. The Cr 3+ state in a wide range of concentrations of Cr 3+ and maleic acid was studied in our work series. 11 kinds of complexes were generated. The formation of this complex was discussed in this paper.