IPLOT-VKA: an Integral-method Powell-pLOT-enhanced Visual Kinetic Analysis for the determination of orders of reaction

Abstract Determination of partial orders in kinetics is a general entry step for any mechanistic investigation; recently, considerable attention has been given to the benefits of using visual methods to help in this task, such as easy utilization and data-efficiency. Here, the classic method by Powell and Margerison has been revisited and improved adding new features (e.g. quantitative estimation of errors), the set of analytical working equation has been widened, and a free, open-access and easy-to-use Web-application, named IPLOT-VKA has been developed. Several examples, taken from reference teaching experiences and from recent literature in catalysis show the efficacy and accuracy of our method.