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Subject / Started by Replies / Views Last post
Fe solubility diagram

Started by shellaarinda10

2 Replies
104 Views
Last post 16/05/25 16:54
by shellaarinda10
Negative Alkalinity Modelling

Started by Idoboro

1 Replies
918 Views
Last post 05/05/25 13:21
by dlparkhurst
Very high CO2 solubility in NaHCO3 and Na2CO3 solutions

Started by jalil

3 Replies
324 Views
Last post 23/01/25 23:25
by dlparkhurst
Halite aquifer and Brine

Started by DFhidro

3 Replies
676 Views
Last post 30/12/24 21:47
by dlparkhurst
Tailing dissolution: AsH3 and H2S

Started by nesa

2 Replies
600 Views
Last post 01/12/24 03:37
by nesa
Solubility Modeling in open system adjusted to high pH

Started by bschroth

6 Replies
834 Views
Last post 26/11/24 19:00
by bschroth
Modelling Solubility of Lithium Carbonate

Started by mdannyjunior

2 Replies
915 Views
Last post 01/10/24 17:39
by mdannyjunior
Speciation with different partial pressure of oxygen

Started by Moji

3 Replies
602 Views
Last post 21/09/24 15:04
by dlparkhurst
Equilibrim - Isotopes (SO4 and H2O)

Started by fcgarcia

2 Replies
651 Views
Last post 20/08/24 16:52
by dlparkhurst
Alkalinity balance

Started by GeeqC

15 Replies
1712 Views
Last post 06/08/24 17:44
by dlparkhurst
Batch reactor equilibria liquid/gas

Started by gdavilao

3 Replies
711 Views
Last post 12/07/24 19:59
by dlparkhurst
S has not converged

Started by Jeonghwan Hwang

3 Replies
959 Views
Last post 24/06/24 16:50
by dlparkhurst
Distribution of species for H2

Started by Hamed

1 Replies
597 Views
Last post 17/06/24 15:31
by dlparkhurst
Calculated Total Alkalinity in brine completely different than measured

Started by Idoboro

0 Replies
797 Views
Last post 15/05/24 10:51
by Idoboro
Water-Rock-Equilibration - Input Moles out of XRD analysis (wt%)

Started by AMa

5 Replies
3582 Views
Last post 08/05/24 00:04
by dlparkhurst
How to fix DH in simulation

Started by qindw

4 Replies
1308 Views
Last post 21/03/24 04:12
by qindw
How to model simple solution in equil. w/ atmospheric CO2, N2, O2?

Started by jheadley

1 Replies
1322 Views
Last post 09/03/24 18:31
by dlparkhurst
Calcite equilibrium with low pH solution

Started by Hamed

4 Replies
1389 Views
Last post 08/02/24 23:12
by Hamed
The water-rock reaction of granite,Reduced SiO2 content

Started by duanjiabin

2 Replies
1295 Views
Last post 23/12/23 10:32
by duanjiabin
I adjusted the equilibrium constant, but the result does not show the Cs+

Started by duanjiabin

2 Replies
1110 Views
Last post 21/12/23 06:25
by duanjiabin
Bubbling point of NCGs (CO2) in geothermal wellbore

Started by FreakQC

4 Replies
1591 Views
Last post 14/07/23 07:38
by FreakQC
DIC concentrations under fixed pCO2 and increasing pressure

Started by thrbnmnn

2 Replies
1194 Views
Last post 26/06/23 09:49
by thrbnmnn
Pyrite formation from ferric (Fe+3) and hydrogen sulfide (HS-)

Started by ahmadreza_shojaee

5 Replies
1413 Views
Last post 12/06/23 16:03
by dlparkhurst
Limitations for low initial concentrations

Started by plechacek

3 Replies
1721 Views
Last post 01/03/23 01:27
by dlparkhurst
Question about adding Exchange and Surface in previous modeling results

Started by Jeonghwan Hwang

2 Replies
1768 Views
Last post 02/09/22 04:16
by Jeonghwan Hwang
How is the pH calculated when equlibrium with atmospheric CO2?

Started by jiasg

2 Replies
1851 Views
Last post 08/07/22 03:41
by jiasg
How to make the condition of constant pCO2 in solution?

Started by Jeonghwan Hwang

1 Replies
2266 Views
Last post 09/09/21 03:29
by dlparkhurst
Unexpected output in distribution of species section

Started by Marino Vetuschi Zuccolini

4 Replies
2488 Views
Last post 09/02/21 21:38
by Marino Vetuschi Zuccolini
Equilibrating exchange with pure water

Started by FlouretAlex

2 Replies
2157 Views
Last post 31/10/20 11:48
by FlouretAlex
phreeqc zeta potential

Started by Nlesani75

1 Replies
2364 Views
Last post 28/07/20 19:04
by dlparkhurst
Initial concentration, portlandite leaching

Started by daliagrig

8 Replies
3389 Views
Last post 06/06/20 21:45
by dlparkhurst
PHREEQC change EQUILIBRIUM_PHASES between TRANSPORT runs?

Started by peterwadeuk

2 Replies
1933 Views
Last post 04/06/20 15:39
by peterwadeuk
Precipitation at Equilibrium

Started by lourdsa

1 Replies
2766 Views
Last post 02/09/19 18:35
by John Mahoney
Water activity equation

Started by IliasBouchkira

2 Replies
2694 Views
Last post 19/07/19 15:19
by IliasBouchkira
Element based input definition and water mass balance

Started by amargert

5 Replies
2684 Views
Last post 01/07/19 16:08
by amargert
Keq at unkown temperature

Started by IliasBouchkira

1 Replies
2002 Views
Last post 25/06/19 16:55
by dlparkhurst
LK_PHASE in basic interpreter

Started by nnegash

2 Replies
2163 Views
Last post 31/05/19 13:50
by nnegash
Convergence error in simulation

Started by Sol-Chan Han

6 Replies
3583 Views
Last post 29/11/18 12:33
by Sol-Chan Han
Mineral Equilibrium calculation

Started by Sol-Chan Han

11 Replies
5927 Views
Last post 26/10/18 02:57
by dlparkhurst
Moles of H2O with high precision when modeling evaporation to NaCl precip. start

Started by MichaelZ20

4 Replies
2790 Views
Last post 24/07/18 08:23
by MichaelZ20
Percentage of HCO3- of total dissolved carbonate

Started by Hydroman

2 Replies
3452 Views
Last post 24/04/18 10:05
by Hydroman
Precipitation at equilibrium

Started by hmal

3 Replies
3258 Views
Last post 16/02/18 00:26
by hmal
Solid solutions

Started by hmal

4 Replies
3068 Views
Last post 21/01/18 23:40
by hmal
Sepiolite SI and precipitate

Started by isaacrojas

1 Replies
2721 Views
Last post 30/06/17 03:02
by dlparkhurst
Carbonate system

Started by docla

1 Replies
4362 Views
Last post 29/03/17 19:51
by dlparkhurst
Corrosion risk / Solution equilibrium

Started by AAN

1 Replies
3601 Views
Last post 17/12/15 21:14
by dlparkhurst
S(-2) speciation

Started by Szasza

1 Replies
3185 Views
Last post 12/08/15 13:42
by dlparkhurst
H2S equilibria

Started by sevy

4 Replies
5824 Views
Last post 21/08/14 00:41
by dlparkhurst
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