Prices: AU$1600

ReactLab KINETICS is used for the global fitting of time dependent kinetic measurements and allows the determination all rate and equilibrium constants in the underlying mechanism.


All reaction parameters, species spectra and concentration distributions are simultaneously determined during the analysis.


Compatible measurements include UV-Vis absorbance and fluorescence, NIR, IR, Raman, ESR and CD.

Can also be used for modelling and simulation of theoretical reaction schemes for testing model resolvability and other exploratory investigations.

A unique reaction scheme interpreter allowing simple entry of symbolic reaction mechanisms with support for symbols or full species names.

Supports the fitting of both rate and equilibrium constants including both slow equilibria where both forward and reverse rates can be resolved and fast equilibria where only the equilibrium constant can be determined.

Accurate modelling of pH variations during reactions involving protonation equilibria. Allows experiments to be carried out in the absence of buffers.

Special auxilliary parameters allow mathematical relationships to set up between parameters using excel cell formulas. Auxiliary parameters can also be used to define other relationships and to enable the fitting of other important parameters such as initial reagent concentrations.

Try ReactLab™ analysis tools on your data! Download the latest versions of the full applications for a free trial period. When your evaluation is complete simply purchase a license to permanently activate the program.

Jplus ReactLab applications comprise an extremely robust compiled Matlab analysis kernel and intuitive user interface. This communicates with Excel workbooks which are used to hold all data, reactions models and analysis results.

The use of Excel provides the user with familiar tools to further process and chart the data and results as well as to share them with other colleagues without the need for the ReactLab program itself.

$1600 AUD
For the modeling and analysis of chemical equilibria
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Adding new dimensions
to chemical process analysis

Latest news
November 20th 2016
ReactLab KINETICS & EQUILIBRIA – build09 now available

This new build fixes a compatibility problem arising with Excel 2016 in which an ‘incomplete worksheet entry’ was raised when trying to update or fit a model to data.

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December 29th 2015

We are pleased to announce that ReactLab KINSIM PLUS for the simulation and modelling of reaction kinetics is now to be made freely available and is renamed ReactLab KINSIM. This remains version 1, but Build 2, and replaces the former free version of the program, also called ReactLab KINSIM but offering fewer features. You can […]

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January 10th 2014

We are pleased to announce the launch of ReactLab KINSIM for the simulation and modelling of reaction kinetics. The standard version of the software is available FREE. You can download the free version from the product page here. ReactLab KINSIM PLUS is a licensed version of the program which offers additional features including dynamic parameter […]

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September 24th 2013
New Jplus Website

New website launched!

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May 7th 2013
ReactLab Version 1.1 Build 08 now available for download.

Key New Feature release: Automatic export of Residual matrix to a separate worksheet in ReactLab workbooks. Fit Plot worksheet added to templates for fit visualisation at selected wavelengths. ReactLab™ EQUILIBRIA and ReactLab™ KINETICS now both support analysis of measurements made at a single wavelength.

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