A Simple and Efficient Device and Method for Measuring the Kinetics of Gas‐Producing Reactions

We present a new device for quantifying gases or gas mixtures based on the simple principle of bubble counting. With this device, we can follow reaction kinetics down to volume step sizes of 8–12 μL. This enables the accurate determination of both time and size of these gas quanta, giving a very det...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2019-11, Vol.58 (48), p.17273-17276
Main Authors: Slot, Thierry K., Shiju, N. Raveendran, Rothenberg, Gadi
Format: Article
Language:English
Subjects:
3D printing
Ammonia
ammonia borane
Arrhenius
Communication
Communications
Data points
Gas mixtures
Gases
Kinetics
Measuring instruments
Reaction kinetics
reaction mechanism
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Summary:We present a new device for quantifying gases or gas mixtures based on the simple principle of bubble counting. With this device, we can follow reaction kinetics down to volume step sizes of 8–12 μL. This enables the accurate determination of both time and size of these gas quanta, giving a very detailed kinetic analysis. We demonstrate this method and device using ammonia borane hydrolysis as a model reaction, obtaining Arrhenius plots with over 300 data points from a single experiment. Our device not only saves time and avoids frustration, but also offers more insight into reaction kinetics and mechanistic studies. Moreover, its simplicity and low cost open opportunities for many lab applications. Bursting the bubble: Quick, easy, and accurate Arrhenius plots from a single experiment were obtained. By using a new device for quantifying gases or gas mixtures based on the simple principle of bubble counting, it is possible to follow reaction kinetics down to volume step sizes of 8–12 μL.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201911005