GWB 12 Standard

The interface is certainly user-friendly and intuitive, and that is very important to me.

– Jeff Tepper, University of Puget Sound

I have installed the GWB and am enjoying using it. Thank you for developing such a great software!

– Peng Luo, Saskatchewan Research Council

The Standard edition of The Geochemist's Workbench® Release 12 is your choice for spreadsheets, diagrams, and multicomponent reaction modeling. GWB Standard includes all the functionality of GWB Essentials. In addition, you can plot how species distributions change as the result of heating, cooling, and mass transferl; as well, model water-rock interaction, fluid mixing, and isotopic fractionation in reacting systems. GWB Standard integrates kinetic rate laws of any form and simulates microbial metabolism and growth.

Reaction paths

Program React simulates multicomponent reaction in closed systems, or those open to mass and heat fluxes. Almost endlessly configurable, you can use React to:

  • Model water-rock interaction
  • Simulate fluid mixing
  • Polythermal reactions
  • Fixed and sliding activity or fugacity
  • Speciation diagrams

Kinetic rate laws

React can integrate into any reaction model the kinetics of:

  • Mineral dissolution and precipitation
  • Complex association and dissociation
  • Sorption and desorption
  • Redox transformations
  • Enzymes and catalysts
  • Gas transfer

Isotope fractionation

React can model the fractionation of stable isotopes in reacting systems:

  • Isotopes of any element with a dominant mass
  • Multiple isotopes of an element (e.g., 17O, 18O)
  • Any number of isotopes active in a run
  • Fractionation among species, minerals, gases
  • Data included for 2H, 13C, 18O, and 34S
  • Equilibrium and segregated minerals
  • Kinetic and microbiological reactions

Microbial reaction and growth

React is built to model microbial reaction and growth. It can account for:

  • Kinetics of microbially catalyzed reactions
  • Growth and decay of microbial populations
  • Thermodynamic constraints on reaction
  • Pure cultures and mixed communities


Need the power of Professional?

Upgrade your Standard license to GWB 12 Professional for just the difference in price.