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溴邻苯三酚红(BPR)曾用作Mg~(3+)的螯合滴定指示剂。我们系统研究了碱土金属离了-BPR-表面活性剂显色体系,发现在pH9.2的氨缓冲介质中,Mg~(2+)-BPR-溴化十六烷基吡啶(CPB)体系具有理论和实用价值。 (一)实验部分
Bromopyrogallol red (BPR) has been used as a chelating titration indicator of Mg ~ (3+). We systematically studied the colorimetric system of alkaline-earth-BPR-surfactant. We found that the system of Mg ~ (2 +) - BPR-CPP has a Theory and practical value. (A) Experimental part