两种方法测定赤泥中可溶性硫酸根  

Determination of Sulfuric Acid Soluble Root in Red Mud by Two Methods

作　　者：张頔[1] 朱云勤[1] 陈星[1] 

机构地区：[1]贵州大学资源化工研究所

出　　处：《化工技术与开发》2011年第6期35-37,共3页Technology & Development of Chemical Industry

摘　　要：赤泥中含有硫酸根离子,其含量对赤泥的回收利用过程带来麻烦,也对回收产品的质量有影响。本文用2种方法测定赤泥中的硫酸根并进行对比,希望找到简便、快捷、准确、精密度高的实验方法。铬酸钡分光光度法:在410nm硫酸根在0～6.00mg.(50mL)-1范围内与铬酸根吸光度呈线性关系,线性回归方程:y=0.1747x-0.0064,r=0.9999。比浊法:在420nm,硫酸根在0～5.00mg.(115mL)-1范围内呈线性关系,线性回归方程:y=0.063x+0.0068,r=0.9990。The sulfuric acid contained in red mud was interference the recovery of red mud.Two methods were applied to determine the sulfuric acid root and the results were compared.Barium chromate spectrophotometry： at 410nm,in range of 0~6mg/50mL,the sulfuric acid root had a linear relationship with chromate absorbency,and the linear regression equation was： y=0.1747x-0.0064,r=0.9999.Turbidimetry： at 420nm,the sulfuric acid rood had a linear relationship in the range of 0~5.00mg/115mL,and the linear regression equation was： y= 0.063x＋0.0068,r=0.9990.

关 键 词：赤泥 硫酸根 测定 

分 类 号：O657[理学—分析化学]