Version History

vers 6.0 – Oct 2016

  • new algorithm for “dosage of chemicals to attain target pH” (with/without mineral precipitation, open redox system, etc.)
  • number of reactants: 455 (aqion PRO: 553)
  • number of minerals: 227

vers 5.20 – Sep 2016

  • improved “dosage of chemicals to attain target pH” (i.e. neutralization and/or acidification, preparations for version 6.0)

vers 5.19 – Jul 2016

  • reactant: KHPhthalate
  • refactoring chem classes
  • new layout of online version (www.aqion.onl)

vers 5.18 – Jun 2016

  • layout of main window improved (positioning of OpenDialog etc.)

vers 5.17 – Apr 2016

  • bugfix for titration plots with NH4 reactants

vers 5.16 – Feb 2016

  • titration plots improved
  • mixing-water panel: input solution is automatically overtaken as 1st water

vers 5.15 – Jan 2016

  • output of ‘half bound CO2’ and ‘firmly bound CO2’
  • data export panel extended

vers 5.14 – Dec 2015

  • new element: Co (+ species and minerals)
  • new Co reactants

vers 5.13 – Nov 2015

  • new reactants: Na citrate, Na ascorbate
  • new organic NH4 reactants

vers 5.12 – Oct 2015

  • output tables: SI can be sorted by name and formula

vers 5.11 – Sep 2015

  • additional mineral phases: Ettringite, etc.
  • new ouput table for minerals and SI

vers 5.10 – Aug 2015

  • new tables for aqueous species

vers 5.9 – Jul 2015

  • new grid structure of output tables
  • more density data for BufferMaker

vers 5.8 – Jun 2015

  • new: element Be
  • total hardness based on Ca, Mg, Sr, Ba, Fe, Al, Zn, Cu, Ni
  • output tables: mineral saturation indizes grouped into subsets: SI=0, SI>0, SI<0

vers 5.7 – May 2015

  • six new Se minerals
  • new Ba reactants
  • titration plots extended for sulfites and sulfides

vers 5.6 – Apr 2015

  • about 10 new NH4 reactants
  • warning message when ionic strength > 1 M

vers 5.5 – Apr 2015

  • first version of BufferMaker
  • calculates densities of reactants (2D interpolation from density tables from Perry’s Chem Handbook)
  • units for BufferMaker: mmol, mmol/L, mg, mg/L, wt%

vers 5.4 – Mar 2015

  • output table: sum of cations and sum of anions
  • hardness: TH, CH and NCH or PsH (pseudo Hardness)

vers 5.3 – Jan 2015

  • total hardness (TH) and carbonate hardness (CH)
  • output table: sorts cations, anions and neutral species by amount

vers 5.2 – Nov 2014

  • scheme displays pe (redox potential)
  • dissolution of CaCO3 in an “Open CO2 System”
  • output tables show CO2(g) and O2(g) in an “Open System”-calculation
  • bugfix: multiple reactions with the same reactant is possible

vers 5.1 – Oct 2014

  • input of Ca and Mg also in units ‘mg CaCO3/L’
  • new reactants: sodium arsenates

vers 5.0 – Sep 2014

  • graphical user interface (GUI) is conform with Windows 7 and higher
  • first version of panel “Dosing of chemicals to adjust pH”

vers 4.13 – Aug 2014

  • top menu bar for settings, extras, info
  • reaction module with setup for open system for CO2 and/or O2

vers 4.12 – Aug 2014

  • titration-plot diagrams with linear or logarithmic scale
  • new minerals: mirabilite, thenardite, and several evaporites

vers 4.11 – Jul 2014

  • sulfite chemistry implemented – S(4)
  • new element: Hg

vers 4.10 – Jun 2014

  • input of pCO2 for “Open CO2 System”
  • input of alkalinity as meq/L, ppm, or °dH

vers 4.9 – May 2014

vers 4.8 – Apr 2014

  • new layout for overview scheme
  • button Details in overview scheme: shows largest changes in element concentrations

vers 4.7 – Apr 2014

  • improved handling of titration calculations
  • number of titration steps is variable
  • new element: Mo
  • cyanides, cyanates

vers 4.6 – Mar 2014

  • titration-plot diagrams with variable x axis: pH, pe, EC, alkalinity
  • additional calcite and phosphate minerals (vaterite, ikaite, …)

vers 4.5 – Mar 2014

  • molar amount of minerals is displayed when minerals dissolve
  • axis labels added to titration-plot diagrams

vers 4.4 – Feb 2014

  • displays changes of DIC in open/closed CO2 system
  • bugfix: dissolution of minerals

vers 4.3 – Feb 2014

  • new elements: Ni and Zn
  • charge-balance error (CBE) with higher precision

vers 4.2 – Jan 2014

  • redox species for As(3), As(5)
  • redox species for Cu(1), Cu(2)
  • redox species for Cr(2), Cr(3), Cr(6)
  • redox species for Mn(2), Mn(3), Mn(6), Mn(7)

vers 4.1 – Jan 2014

  • config panel for mineral phases
  • input of redox potential (pe value)

vers 4.0 – Dec 2013

  • mixing of two solutions