钴(Ⅱ)-硫氰酸钾-正戊醇-乙醚体系的稳定条件  

Stability Condition of Cobalt(Ⅱ)-Potassium Thiocyanate-Amyl Alcohol-Ether System

作　　者：马稳[1] 钟黎[1] 乔秋菊[1] 

机构地区：[1]信阳师范学院化学化工学院,河南省信阳长安路237号464000

出　　处：《光谱实验室》2013年第6期3299-3301,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：研究了在乙醚和正戊醇体系中,Co2+与硫氰酸钾形成络合物的稳定条件。实验表明,以吸光度为评价指标,体系的最佳反应条件为1.0mL钴(Ⅱ)标准溶液;4.0mL硫氰酸钾标准溶液,pH=2.0,温度24℃,乙醚4.0mL,反应时间40min。The stability conditions about Co^2＋ and potassium thiocyanate complex formation in ether and amylalcohol system was studied. The absorbance was index for evaluation, Experimental results show that,the optimal reaction conditions were 1.0mL cobalt （ Ⅱ ） standard solution;4.0mL potassium thiocyanate standard solution, PH = 2. 0, temperature 24℃, ether4. 0mL, Reaction time 40min.

关 键 词：钴(Ⅱ) 络合物 分光光度法 

分 类 号：O657.32[理学—分析化学]