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 Equilibrium with atmospheric CO2 ("open system")

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Output: pH, EC , alkalinity, aqueous speciation, saturation indices, ...

Available Reactants & Compounds

In total there are 219 chemical reactants available: 90 acidic, 80 alkaline, and 49 neutral compounds.

  Acidic compounds:         Alkaline compounds:
(NH4)2Cr2O7 ammonium dichromate   (NH4)2CO3 ammonium carbonate
(NH4)2SeO4 ammonium selenate   (NH4)2CrO4 ammonium chromate
(NH4)2SO4 ammonium sulfate   (NH4)2HPO4 ammonium hydrogen phosphate
Al(NO3)3 aluminum nitrate   (NH4)2SO3 ammonium sulfite
Al(OH)3 aluminum hydroxide   (NH4)3PO4 ammonium phosphate
Al2(SO4)3 aluminum sulfate   Al2O3(CaO)3 tri-calcium aluminate
AlCl3 aluminum chloride   Ba(OH)2 barium hydroxide
AlF3 aluminum fluoride   BaCO3 barium carbonate
AsI3 arsenic(III) iodide (arsenous iodide)   BaI2 barium iodide
BeCl2 beryllium chloride   BaS barium sulfide
BeF2 beryllium fluoride   Be(OH)2 beryllium hydroxide
BeSO4 beryllium sulfate   Ca(HCO3)2 calcium hydrogen carbonate
Ca(H2PO4)2 calcium dihydrogen phosphate   Ca(OH)2 calcium hydroxide (lime, CaO:H2O)
CH2O 1/6 glucose   Ca3(PO4)2 calcium phosphate
CO2 carbon dioxide   CaCO3 calcium carbonate (calcite)
CrCl3 chromium(III) chloride   CaCO3MgO half-burnt dolomite
CrK(SO4)2 chrome alume   CaHPO4 calcium hydrogen phosphate
CrOHSO4 chromium(III) hydroxide sulfate   CaMg(CO3)2 dolomite (mineral)
Cu(NO3)2 copper(II) nitrate (cupric nitrate)   CaMoO4 calcium molybdate (powellite)
CuBr2 copper(II) bromide (cupric bromide)   CaO burnt lime
CuCl2 copper(II) chloride (cupric chloride)   CaOAl2O3 calcium aluminate
CuF2 copper(II) fluoride (cupric fluoride)   CaOMgO burnt dolomite
CuSO4 copper(II) sulfate (cupric sulfate)   Cd(OH)2 cadmium hydroxide
Fe(NO3)3 iron(III) nitrate   CdCO3 cadmium carbonate
Fe2(SO4)3 iron(III) sulfate   Cr(OH)3 chromium(III) hydroxide
FeCl2 iron(II) chloride (ferrous chloride)   Cu(OH)2 copper(II) hydroxide
FeCl3 iron(III) chloride   Fe(HS)2 iron(II) hydrogen sulfide
FeF3 iron(III) fluoride   Fe(OH)2 iron(II) hydroxide (ferrous hydroxide)
FeNH4(SO4)2:2H2O ferric ammonium sulfate (iron alaun)   Fe(OH)3 iron(III) hydroxide (ferric hydroxide)
FeSO4 iron(II) sulfate   FeHPO4 iron(III) hydrogen phosphate
H2CO3 carbonic acid   Hg(OH)2 mercury(II) hydroxide
H2CrO4 chromic acid   K2CO3 potassium carbonate
H2MoO4 molybdic acid (MoO3:H2O)   K2CO3 potassium carbonate
H2S hydrogen sulfide   K2CrO4 potassium chromate
H2Se hydrogen selenide   K2HPO4 potassium hydrogen phosphate
H2SeO3 selenous acid   K2MoO4 potassium molybdate
H2SeO4 selenic acid   K2SO3 potassium sulfite
H2SO3 sulfurous acid   K3PO4 potassium phosphate
H2SO4 sulfuric acid   KAl(SO4)2:12H2O potassium aluminum sulfate (potassium alum)
H3AsO3 arsenious acid   KHCO3 potassium hydrogen carbonate
H3AsO4 arsenic acid   KMnO4 potassium permanganate
H3BO3 boric acid   KNO2 potassium nitrite
H3PO4 orthophosphoric acid   KOH potassium hydroxide (caustic potash)
H4SiO4 silicic acid   LiOH lithium hydroxide
HBr hydrobromic acid   Mg(OH)2 magnesium hydroxide (MgO:H2O)
HCl hydrochloric acid   MgCO3 magnesium carbonate
HCyanate isocyanic acid, HOCN   MgHPO4 magnesium hydrogen phosphate
HCyanide hydrocyanic acid, HCN   MgMoO4 magnesium molybdate
HF hydrofluoric acid   MgO magnesium oxide
Hg(NO3)2 mercury(II) nitrate   MgSO3 magnesium sulfite
HgCl2 mercury(II) chloride   MnCO3 manganese(II) carbonate
HgSO4 mercury(II) sulfate   Na2B4O7:10H2O sodium borate (borax)
HI hydroiodic acid   Na2CO3 sodium carbonate (soda ash)
HNO2 nitrous acid   Na2CrO4 sodium chromate
HNO3 nitric acid   Na2HAsO4 disodium hydrogen arsenate
K2Cr2O7 potassium dichromate   Na2HPO4 disodium hydrogen phosphate
KH2PO4 potassium dihydrogen phosphate   Na2S sodium sulfide
Na2Cr2O7 sodium dichromate   Na2SiO3 sodium metasilicate
Na2SO3 sodium sulfite   Na3AsO4 sodium arsenate
Na2SO3 sodium sulfite   Na3PO4 trisodium phosphate
NaH2AsO4 sodium dihydrogen arsenate   NaAl(OH)4 sodium aluminate
NaH2PO4 sodium dihydrogen phosphate   NaAlO2 sodium aluminate
NaHSO3 sodium hydrogen sulfite   NaHCO3 sodium hydrogen carbonate
NaHSO4 sodium hydrogen sulfate   NaHS sodium hydrogen sulfide
NH4Br ammonium bromide   NaOH sodium hydroxide
NH4Cl ammonium chloride (salmiac)   NH3 ammonia
NH4H2PO4 ammonium dihydrogen phosphate   NH4Cyanide ammonium cyanide
NH4HSO4 ammonium hydrogen sulfate   NH4HCO3 ammonium hydrogen carbonate
NH4I ammonium iodide   NH4MnO4 ammonium permanganate
NH4NO3 ammonium nitrate   NH4OH ammonium hydroxide (NH3:H2O)
Ni(NO3)2 nickel(II) nitrate   Ni(OH)2 nickel(II) hydroxide
Pb(BrO3)2 lead(II) bromate   NiCO3 nickel(II) carbonate
Pb(NO3)2 lead(II) nitrate   Pb(OH)2 lead(II) hydroxide
PbBr2 lead(II) bromide   PbCO3 lead(II) carbonate
PbCl2 lead(II) chloride   Sr(OH)2 strontium hydroxide
PbF2 lead(II) fluoride   SrCO3 strontium carbonate
PbI2 lead(II) iodide   U(OH)4 uranium(IV) hydroxide
PbSO4 lead(II) sulfate   Zn(OH)2 zinc hydroxide
SeO2 selenium dioxide   ZnCO3 zinc carbonate
SeO3 selenium trioxide   ZnSO4 zinc sulfate
SO2 sulfur dioxide      
SO3 sulfur trioxide      
U(SO4)2 uranium(IV) sulfate      
UO2Cl2 uranyl chloride      
UO2CO3 uranyl carbonate      
UO2SO4 uranyl sulfate      
Zn(NO3)2 zinc nitrate      
ZnBr2 zinc bromide      
ZnCl2 zinc chloride      
ZnI2 zinc iodide      

pH neutral compounds:

Al2O3   aluminum oxide
Ba(NO3)2   barium nitrate
BaBr2   barium bromide
BaCl2   barium chloride
BaF2   barium fluoride
BaSO4   barium sulfate
Ca(NO3)2   calcium nitrate
CaCl2   calcium chloride
CaOCl2   chlorinated lime
CaSO4   calcium sulfate
Cd(NO3)2   cadmium nitrate
CdBr2   cadmium bromide
CdCl2   cadmium chloride
CdF2   cadmium fluoride
CdI2   cadmium iodide
CdSO4   cadmium sulfate
Cu3(PO4)2   copper(II) phosphate
CuCl   copper(I) chloride
CuCO3   copper(II) carbonate (cupric carbonate)
CuI   copper(I) iodide
FeMoO4   iron(II) molybdate
H2O2   hydrogen peroxide
K2SeO4   potassium selenate
K2SO4   potassium sulfate
KBr   potassium bromide
KCl   potassium chloride
KF   potassium fluoride
KI   potassium iodate
KNO3   potassium nitrate
KNO3   potassium nitrate
Mg(NO3)2   magnesium nitrate
MgCl2   magnesium chloride
MgSO4   magnesium sulfate
Mn(NO3)2   manganese(II) nitrate
MnCl2   manganese(II) chloride
MnSO4   manganese(II) sulfate
Na2SeO4   sodium selenate
Na2SO4   sodium sulfate (Glauber’s salt)
NaBr   sodium bromide
NaCl   sodium chloride
NaF   sodium fluorite
NaNO2   sodium nitrite
NaNO3   sodium nitrate
NiBr2   nickel(II) bromide
NiCl2   nickel(II) chloride
NiSO4   nickel(II) sulfate
Sr(NO3)2   strontium nitrate
SrCl2   strontium chloride
SrSO4   strontium sulfate