摘要
通过研究样品制备时的酸度、时间等引起硅酸凝聚的条件以及光度测定条件的重新实验，确立了拜尔赤泥中二氧化硅的钼蓝光度法测定条件。结果表明：此方法相对标准偏差小于0．75％，回收率98％～101％。
By studying the retest of the condition of silicic acid coagulation caused by acidity and time during sample preparation and the photometric determination condition, the determination condition of silica in Bayer red mud by molybdenum blues photometry is established in this paper. The test results show that the relative deviation of the method is less than 0.75 % and the recovery rate of adding standard solution is between 98% and 101%.
出处
《山西化工》
2006年第5期42-43,58,共3页
Shanxi Chemical Industry
关键词
拜尔赤泥
二氧化硅
硅酸凝聚
酸度
钼蓝光度法
Bayer red mud
silica
coagulation of silicic acid
acidity
molybdenum blues photometry
