Influence of titrating speed of iodine-azide solution upon the results of the iodine-azide titration

Iodine-azide reaction and its application to quantitative micro-analysis. XI

Abstract

Since the iodine-azide reaction was considered as one of catalytic reactions, the titrating speed by iodine-azide was assumed to influence with the result of the analysis using this reaction. The detailed experiment was performed on thiourea and iodine-azide, and the result indicated that as far as the titrating speed was quite large, the linearity was maintained between the titer of iodine-azide solution and thiourea content.
However, if the titrating speed was too low, the calibration curve deviated from the linear relation. A general equation of titrating curve indicating the relation was derived from the theoretical base.