钛白副产硫酸亚铁中镁离子的含量分析  

Analysis on magnesium ions content in ferrous sulfate from byproduct of titanium dioxide

作　　者：赵业军[1] 钱欣 王桂兵 周朗坤 王莹莹 ZHAO Ye-jun;QIAN Xin;WANG Gui-bing;ZHOU Lang-kun;WANG Ying-ying(College of Life Science&Chemistry,Wuhan Donghu University,Wuhan 430212,China;Pharmacy Faculty,Hubei University of Chinese Medicine,Wuhan 430065,China)

机构地区：[1]武汉东湖学院生命科学与化学学院,湖北武汉430212 [2]湖北中医药大学药学院,湖北武汉430065

出　　处：《化学工程师》2024年第1期30-32,共3页Chemical Engineer

摘　　要：本文研究以酸性铬蓝K为指示剂,以草酸铵为沉淀剂排除Fe^(2+)干扰,用紫外分光光度法测定钛白副产物FeSO_(4)中的Mg^(2+)的含量。实验结果表明,Mg-铬蓝K的最大吸收峰波长为540nm,最佳pH值为9.5,最佳沉淀剂草酸铵的用量为10mL。经加标回收的方法验证了方法的可行性,测出钛白副产物FeSO_(4)中Mg^(2+)含量为1.07%。In this paper,the content of magnesium ions in ferrous sulfate,a byproduct of titanium dioxide,was determined by ultraviolet spectrophotometry,while acid chromium blue K wad used as indicator,ammonium oxalate was used as precipitant to eliminate the interference of ferrous ions.The experimental results showed that the maximum absorption peak wavelength of Mg-chromium blue K was 540nm,the optimal pH value was 9.5,and the optimal dosage of ammonium oxalate was 10mL.The feasibility of the method was verified by the standard adding recovery method.The content of magnesium ion in ferrous sulfate,a byproduct of titanium dioxide,was determined to be 1.07%.

关 键 词：钛白副产物 硫酸亚铁 镁离子 含量分析 酸性铬蓝K 

分 类 号：TQ134.1[化学工程—无机化工]