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本文研究了“碱土(Ⅱ)-稀土(Ⅲ)-茜紫-氯化+四烷基吡啶”共显色体系,确定了最佳显色条件。此共显色是形成杂多核配合物所引起。实验结果得出:参与共显色的金属离子半径比在此共显色效应中起着重要作用,其大小在一定范围内时,共显色强度基本相同,否则共显色强度就会减弱,甚至不发生;在固定显色剂的情况下,根据半径与半径比相近寻找新的共显色体系是有一定可能的,但不同的体系有不同的最佳半径比范围;金属离子水解能力的差别对此共显色体系影响不大。
In this paper, the common coloration system of “alkaline earth (Ⅱ) - rare earth (Ⅲ) - purple purple - chlorinated + tetraalkylpyridine” was studied, and the best color condition was determined. This total color is caused by the formation of heteronuclear complexes. The experimental results show that: the radius of the metal ions involved in the total color development plays an important role in the total color rendering effect. When the size is within a certain range, the total color strength is basically the same, otherwise the total color strength will be weakened, Even in the case of a fixed developer, it is possible to find a new coloration system according to the ratio of the radius to the radius, but different systems have different optimum radii ratios; the ability of the metal ion to hydrolyze The difference between the total color system has little effect.