Optimization of Synthetic Conditions of Polymerized Ferric Sulfate by Orthogonal Experiment
ZHANG Wei-Wei1, QIU Li-Na2, GUO Li-Fang1, LU Hui-Li1
1. Basic Experimental Center for Natural Science, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Abstract The preparation experiment of polymeric ferric sulfate was improved. Considering dosages of hydrogen peroxide, concentrated sulfuric acid and water, synthesis temperature are the four most influential factors for the preparation of polymeric ferric sulfate, these four factors were changed into variables. The orthogonal test with four factors and three levels was carried out by students, and then the best conditions for preparation were obtained by comparing to the rate of turbidity. The improved experiment not only improved the students' ability of exploration, but also deepened the students' grasp of the preparation conditions of polymeric ferric sulfate.
ZHANG Wei-Wei, QIU Li-Na, GUO Li-Fang, LU Hui-Li. Optimization of Synthetic Conditions of Polymerized Ferric Sulfate by Orthogonal Experiment[J]. Chinese Journal of Chemical Education, 2019, 40(4): 43-45.
