通过推导碘化物浸金过程的热力学判据,提出碘化物浸金的平衡常数判据,对碘-碘化物浸金体系进行了热力学分析.只要氧化剂的氧化电位ψ1＞+0.561 V,碘化物浸金反应在热力学上就能够发生.标准条件下反应式恒压和等温电位变化的判据为△G298θ=-(ψ1-0.561)nF,平衡常数判据为lgK298θ=16.935n(ψ1-0.561).降低浸金液中金的浓度,增加碘、碘化物的浓度,有利于金的浸出.
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