Abstract The complexing reaction of Fe3+ and SCN- was sensitive and the color change was obvious. Considering the transition of high school teaching,this paper focused on the use of Le Chatelier's principle,analyzed the effect of concentration on the color reaction from 3 aspects,such as redox reaction,changing the pH of solution,adding other coordination ions and so on.
ZHANG Jin-Shui. Analysis of Effect of Concentration on the Color Reaction of Fe3+ and SCN- With Le Chatelier's Principle[J]. Chinese Journal of Chemical Education, 2018, 39(19): 62-65.