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Subject / Started by Replies / Views Last post
Approaches for pH (estimation, fixing etc...)

Started by Tom

2 Replies
11572 Views
Last post 28/11/23 15:52
by dlparkhurst
need help fixing pH

Started by wasylenki

14 Replies
14418 Views
Last post 24/12/21 06:28
by MichaelZ20
Evaporate a solution using PHREEQC

Started by Tom

6 Replies
9474 Views
Last post 04/02/21 14:54
by dlparkhurst
Converting from molality (mol/kgw) to mg/l for high solubility minerals

Started by Tom

24 Replies
21530 Views
Last post 20/03/20 12:11
by GeeqC
alkalinity confusion

Started by deso

5 Replies
17775 Views
Last post 22/02/16 23:35
by deso
Alkalinity and HCO3- how we put in Phreeqc?

Started by Carla

3 Replies
12396 Views
Last post 25/05/14 19:46
by Carla
The operation result of copying Instance 9 is incorrect

Started by yisongxu

5 Replies
295 Views
Last post 18/05/25 19:02
by dlparkhurst
Validating PHREEQC activity coefficent

Started by salimmalik

3 Replies
236 Views
Last post 14/05/25 14:16
by dlparkhurst
COM module fails but PHREEQCi works

Started by TerryH

3 Replies
125 Views
Last post 14/05/25 12:48
by dlparkhurst
How to adjust S(6) concentration in PHREEQC to match a fixed pH from pH meter?

Started by ss13217

1 Replies
146 Views
Last post 30/04/25 17:28
by dlparkhurst
Modelling the activity coefficient- Database for nitrite NO2-

Started by salimmalik

1 Replies
112 Views
Last post 30/04/25 13:35
by dlparkhurst
Differences in results between Windows/Linux version and Mac version

Started by mmelwani

4 Replies
412 Views
Last post 23/04/25 00:42
by mmelwani
PHREEQC Mixing Model ? Can RPM and Time Be Included?

Started by adhindafa

5 Replies
491 Views
Last post 21/04/25 16:38
by dlparkhurst
Connecting element-based flow and transport solver to PHREEQC

Started by anovikov

3 Replies
329 Views
Last post 16/04/25 12:56
by anovikov
Setting solution pH with NaOH concentration

Started by OLIVIA_RH

2 Replies
380 Views
Last post 09/04/25 12:00
by OLIVIA_RH
Eu carbonate pH distribution

Started by hj990425

1 Replies
350 Views
Last post 26/03/25 14:20
by dlparkhurst
Defining rates for mineral precipitation

Started by WJJ

1 Replies
375 Views
Last post 19/03/25 21:10
by dlparkhurst
Ionic Strength of brine water

Started by Jovel

2 Replies
315 Views
Last post 16/03/25 14:48
by Jovel
A problem with EQUI

Started by AnotherSLGuy

2 Replies
341 Views
Last post 14/03/25 02:33
by AnotherSLGuy
reducing/oxidation conditions

Started by hj990425

1 Replies
396 Views
Last post 05/03/25 06:01
by dlparkhurst
As phase plot example

Started by jt2020

5 Replies
650 Views
Last post 03/03/25 16:15
by jt2020
Implementation of a figure

Started by Chemistry

3 Replies
448 Views
Last post 01/03/25 05:23
by dlparkhurst
Question about the charge KEYWORD

Started by hj990425

1 Replies
291 Views
Last post 28/02/25 05:12
by dlparkhurst
Compiing issue when running the IPheeqc advection example in cpp

Started by conghaoyi

2 Replies
343 Views
Last post 20/02/25 22:07
by conghaoyi
How do I change the pH of a solution with hydrochloric acid

Started by Smolly

1 Replies
483 Views
Last post 11/02/25 03:16
by dlparkhurst
Batch reaction with kinetic dissolution and equilibrium precipitation

Started by Max

1 Replies
489 Views
Last post 08/02/25 15:16
by dlparkhurst
Help with setting up Fe hydroxiphosphate precipitation reaction

Started by frederico_aragao

3 Replies
1294 Views
Last post 07/02/25 18:25
by dlparkhurst
Help on understanding how RATES and some other blocks are written

Started by frederico_aragao

2 Replies
470 Views
Last post 05/02/25 12:02
by frederico_aragao
conversion from molarity to molality

Started by ss13217

3 Replies
467 Views
Last post 24/01/25 23:26
by ss13217
PhreeqcRM: using CreateMapping() to inactive cells from reaction calculation

Started by weilas

2 Replies
458 Views
Last post 24/01/25 00:57
by weilas
Problem regarding missing species of CaF after simulation

Started by i_azharkhan

0 Replies
607 Views
Last post 04/01/25 17:10
by i_azharkhan
Errors in a modified database

Started by RenAmb

2 Replies
956 Views
Last post 21/12/24 15:55
by dlparkhurst
Need help with estimating pH in different soil layers through time

Started by Azad

3 Replies
787 Views
Last post 19/12/24 15:34
by dlparkhurst
On the right usage of KNOBS

Started by Flopi

7 Replies
2877 Views
Last post 11/12/24 15:25
by dlparkhurst
FREE ION ACTIVITY AS INPUT

Started by ioapa

1 Replies
703 Views
Last post 02/12/24 12:45
by dlparkhurst
Titrating with H2SO4 - figuring amount added

Started by JVillinski

4 Replies
694 Views
Last post 27/11/24 14:05
by JVillinski
Solubility of CO2 in a system with fixed total pressure

Started by jalil

1 Replies
548 Views
Last post 25/11/24 16:31
by dlparkhurst
Binary Interaction Parameter for Gas Mixtures

Started by Salem

1 Replies
640 Views
Last post 09/11/24 17:34
by dlparkhurst
Understanding Pitzer Model

Started by Salem

1 Replies
861 Views
Last post 08/11/24 18:16
by dlparkhurst
Issue with Multiple PhreeqcRM Instances and RM_SetConcentrations in Fortran

Started by pirouzs

1 Replies
622 Views
Last post 08/11/24 01:17
by dlparkhurst
Kinetic CO2 degassing

Started by MichaelZ20

4 Replies
885 Views
Last post 31/10/24 13:07
by MichaelZ20
Iteration

Started by Researcher

2 Replies
879 Views
Last post 30/10/24 12:17
by Researcher
pH calculation

Started by aud

2 Replies
595 Views
Last post 30/10/24 09:07
by aud
number of mixruns with variable cell length

Started by Feldmann

2 Replies
653 Views
Last post 24/10/24 11:55
by Feldmann
Niobium specitation plot

Started by kimdy

1 Replies
626 Views
Last post 16/10/24 14:39
by dlparkhurst
non-carbonate/total carbonate error

Started by JVillinski

7 Replies
832 Views
Last post 15/10/24 00:23
by dlparkhurst
Density calculation in the Description of solution section of the output

Started by Researcher

2 Replies
797 Views
Last post 04/10/24 13:07
by Researcher
KIN_DELTA sign

Started by MichaelZ20

2 Replies
690 Views
Last post 26/09/24 14:34
by MichaelZ20
Questions about Vm Under SOLUTION_SPECIES

Started by TRJ

1 Replies
577 Views
Last post 24/09/24 15:23
by dlparkhurst
Output product solubility constants

Started by ammonge

4 Replies
995 Views
Last post 07/09/24 11:40
by ammonge
Disconnecting simulations for USER_GRAPH

Started by MichaelZ20

9 Replies
1193 Views
Last post 06/09/24 20:08
by MichaelZ20
How to perform sequential equilibrations with Solution Spread

Started by peterwadeuk

3 Replies
2121 Views
Last post 27/08/24 19:17
by lmanouki
How to extract data from the Output file

Started by ss13217

1 Replies
685 Views
Last post 27/08/24 16:23
by dlparkhurst
On Lead solubility in water

Started by ecsgsi

1 Replies
669 Views
Last post 26/08/24 14:27
by dlparkhurst
Kinetic Calcite Precipitation

Started by TMPlanter

2 Replies
729 Views
Last post 20/08/24 01:07
by TMPlanter
Extremely high saturation indices of hematite in groundwater

Started by Zhe Dong

2 Replies
698 Views
Last post 13/08/24 16:25
by Zhe Dong
Litharge solubility

Started by ecsgsi

4 Replies
943 Views
Last post 10/08/24 16:03
by ecsgsi
I need hlep

Started by asael mor

3 Replies
783 Views
Last post 06/08/24 15:29
by dlparkhurst
add diffusion coefficients

Started by Mr.white

1 Replies
822 Views
Last post 03/08/24 23:02
by dlparkhurst
Discrepancy in Na and Cl Molality Calculation Across All Databases in PHREEQC

Started by CHENTing

5 Replies
1422 Views
Last post 20/07/24 18:14
by dlparkhurst
Solution_spread and reactions

Started by GeeqC

8 Replies
2891 Views
Last post 02/07/24 19:40
by GeeqC
CO2(g) - input file (PhreePlot)

Started by blaziuu

1 Replies
878 Views
Last post 23/06/24 18:03
by dlparkhurst
Asking about PHREEQC for Struvite Modelling

Started by adhindafa

4 Replies
992 Views
Last post 22/06/24 17:55
by MichaelZ20
pH estimation without Alkalinity measurement

Started by lisaR

7 Replies
1000 Views
Last post 22/06/24 17:04
by dlparkhurst
pH effective value

Started by lisaR

1 Replies
688 Views
Last post 20/06/24 16:32
by dlparkhurst
Fix Redox State Problem

Started by Chemistry

1 Replies
614 Views
Last post 18/06/24 16:26
by dlparkhurst
Interaction of CO2-H2S with Carbonate Minerals

Started by amerhyme

1 Replies
1194 Views
Last post 09/06/24 23:18
by dlparkhurst
AI, Google Search, and Internet Changes

Started by loonst

1 Replies
732 Views
Last post 07/06/24 03:07
by anatolewilson
Uranium-borate complex

Started by magan.govender

2 Replies
786 Views
Last post 30/05/24 09:47
by magan.govender
EQUILIBRIUM_PHASES with atmospheric pressure

Started by Jowitawl

2 Replies
865 Views
Last post 23/05/24 11:22
by Jowitawl
Simple questions on BASIC statement/function for data extraction

Started by charis.sy.wong

5 Replies
3732 Views
Last post 10/05/24 06:38
by Jeonghwan Hwang
Transport shifts and reaction/kinetics steps

Started by MichaelZ20

13 Replies
2253 Views
Last post 04/05/24 17:25
by MichaelZ20
Question about KIN_DELTA("Species") calculation

Started by Subat

1 Replies
894 Views
Last post 01/05/24 07:48
by dlparkhurst
Input erros

Started by gmgmgm

1 Replies
1158 Views
Last post 28/04/24 22:27
by dlparkhurst
Will excessive reaction steps cause the model to crash?

Started by Rhine

3 Replies
1142 Views
Last post 16/04/24 15:17
by dlparkhurst
CO2SYS comparison

Started by steve.rackley

1 Replies
1091 Views
Last post 30/03/24 15:21
by dlparkhurst
Ionic strength limits

Started by Charlie

6 Replies
4158 Views
Last post 26/03/24 14:02
by MACAHarding
RATES doesn't work

Started by gmgmgm

5 Replies
1153 Views
Last post 20/03/24 20:43
by dlparkhurst
How to fix charge balance error for acid solution and buffer

Started by ss13217

3 Replies
1055 Views
Last post 19/03/24 17:07
by dlparkhurst
Kinetics, Rates and Advection: K-Feldar Dissolves and Albite Precipitates

Started by MACAHarding

5 Replies
1496 Views
Last post 14/03/24 14:53
by dlparkhurst
Modeling dissolution without rock/fluid equilibrium

Started by TMPlanter

5 Replies
1339 Views
Last post 11/03/24 14:11
by TMPlanter
Evaporation Simulation Question

Started by davidblevy

2 Replies
1117 Views
Last post 06/03/24 18:39
by davidblevy
pH of mixed solution

Started by Merson

3 Replies
1177 Views
Last post 06/03/24 14:31
by dlparkhurst
Error with SiO2 when adding new minerals to a Pitzer model.

Started by TMPlanter

4 Replies
1269 Views
Last post 04/03/24 13:40
by TMPlanter
Difference between KIN_DELTA and SAVE moles

Started by ciegolon

1 Replies
1033 Views
Last post 28/02/24 16:46
by dlparkhurst
how to convert from mg/l to molality ?

Started by AlemanDavid

1 Replies
1171 Views
Last post 23/02/24 15:18
by dlparkhurst
Guide on running a simple example and seeing the results with PHREEQCRM

Started by 1byte

12 Replies
2329 Views
Last post 17/02/24 01:14
by ciegolon
Convergence issues calculating speciation

Started by caitlin.selfe

3 Replies
1450 Views
Last post 15/02/24 04:13
by dlparkhurst
How to compute the hydrogen solubility in pure water with different temperature

Started by yshiduo

2 Replies
1258 Views
Last post 30/01/24 17:56
by yshiduo
How to compute the concentration with REACTION pressure and temperature

Started by yshiduo

5 Replies
1406 Views
Last post 29/01/24 16:20
by yshiduo
Aqueous speciation as function of pH

Started by geochemBeBe

4 Replies
1608 Views
Last post 09/01/24 22:45
by geochemBeBe
calculating SI for dissolution of calcite at different PCO2 values

Started by crom

1 Replies
1394 Views
Last post 12/12/23 19:12
by dlparkhurst
Is it possible to calculate temperature change with PHREEQC?

Started by MichaelZ20

1 Replies
1043 Views
Last post 11/12/23 14:09
by dlparkhurst
definition for expression “controlling phases”

Started by c.wolke

0 Replies
1014 Views
Last post 04/12/23 12:02
by c.wolke
differences between phreeqc and manually calculated charge balance

Started by JoniDH

1 Replies
1053 Views
Last post 30/11/23 15:01
by dlparkhurst
Data interaction between PHREEQC and toughreact

Started by Merson

3 Replies
1239 Views
Last post 23/11/23 02:37
by dlparkhurst
Simulate the carbonation of Mg(OH)2 with NaHCO3

Started by lrossi

3 Replies
1294 Views
Last post 15/11/23 17:49
by dlparkhurst
H4SiO4 is not in the database, how to add it to show secondary major minerals

Started by duanjiabin

1 Replies
1186 Views
Last post 07/11/23 14:49
by dlparkhurst
Pyrite dissolution /Fe+3 oxidation

Started by gmgmgm

3 Replies
1274 Views
Last post 02/11/23 16:06
by dlparkhurst
Pyrite oxidation/ Fe+3

Started by gmgmgm

4 Replies
1729 Views
Last post 31/10/23 02:30
by gmgmgm
Neutralization of a multimetallic solution using NaOH

Started by Kompa

2 Replies
1226 Views
Last post 24/10/23 12:27
by Kompa
NEW DATABASE

Started by Bernice

1 Replies
1161 Views
Last post 18/10/23 20:26
by dlparkhurst
CO2 Stripping

Started by pnair

1 Replies
1038 Views
Last post 06/10/23 16:12
by dlparkhurst
Adding VFAs/acetic acid into phreeqc

Started by akaess

1 Replies
1131 Views
Last post 29/09/23 16:15
by dlparkhurst
CINETIQUE DE LA DISSOLUTION DU QUARTZ

Started by LAMINE

1 Replies
1110 Views
Last post 21/09/23 21:06
by dlparkhurst
EFFECT OF NaCl, KCl and CaCl2 in solubility of Calcite

Started by onat.yakisik

1 Replies
1218 Views
Last post 11/09/23 15:35
by dlparkhurst
Thermodynamic data

Started by onat.yakisik

1 Replies
1090 Views
Last post 05/09/23 13:51
by dlparkhurst
Density calculation and mole concentration of components

Started by Hashemi

2 Replies
1324 Views
Last post 29/08/23 15:35
by Hashemi
USER_Graph with pH-Value and SI

Started by eismann

1 Replies
1258 Views
Last post 27/08/23 17:47
by dlparkhurst
Ionic strength reported and manually calculated are not consistent

Started by klk

3 Replies
1416 Views
Last post 26/08/23 23:14
by dlparkhurst
Inconsistent amounts of elements when input is in mg/L

Started by klk

4 Replies
1364 Views
Last post 20/08/23 04:33
by dlparkhurst
Calcium hydroxyphosphate(Ca5(PO4)3OH)

Started by melaniewalker

1 Replies
1372 Views
Last post 11/08/23 15:38
by dlparkhurst
Calculatinh pH value from Major ion concnetrations

Started by kbrohith

1 Replies
1198 Views
Last post 07/08/23 14:33
by dlparkhurst
pH increases after the concentration of a solution

Started by dmcv

1 Replies
1126 Views
Last post 25/07/23 16:56
by dlparkhurst
adding alo2- as solution species is not working

Started by maria

2 Replies
1195 Views
Last post 24/07/23 19:38
by maria
How to define mol amount for basalts for CO2-rock-brine interactions

Started by maria

6 Replies
1878 Views
Last post 09/07/23 09:18
by maria
Apply reaction to array of solutions

Started by GeeqC

3 Replies
1267 Views
Last post 20/06/23 22:50
by dlparkhurst
Speciation calculations for chemicals and defining DOC in PHREEQC.

Started by hobbit1998

1 Replies
1208 Views
Last post 17/06/23 20:44
by dlparkhurst
Incremental mixing

Started by tcotterell

3 Replies
1535 Views
Last post 08/06/23 20:27
by dlparkhurst
USER_GRAPH

Started by MichaelZ20

4 Replies
1302 Views
Last post 07/06/23 18:29
by MichaelZ20
How to see the effect of an increased pH on a composition of water

Started by akaess

1 Replies
1297 Views
Last post 05/06/23 15:32
by dlparkhurst
Defining the amount of moles in "EQUILIBRIUM_PHASES"

Started by seanshi40@gmail.com

4 Replies
1545 Views
Last post 04/06/23 08:50
by seanshi40@gmail.com
Solubility of Fe(OH)3(a) in presence of Goethite

Started by arif

2 Replies
1197 Views
Last post 03/06/23 22:38
by arif
help with initial condition for H2 reduction

Started by amaury22

9 Replies
2198 Views
Last post 02/06/23 04:06
by amaury22
MINERAL CHANGE WITH RESPECT TO TIME

Started by kennedyantwi1

4 Replies
1688 Views
Last post 20/05/23 23:11
by kennedyantwi1
Hydrogen peroxide solution

Started by Tom

5 Replies
4710 Views
Last post 18/05/23 10:16
by AntonioG
How to model the Effect of CO2-brine-rock mineral interactions on porosity

Started by kennedyantwi1

15 Replies
2824 Views
Last post 17/05/23 16:37
by kennedyantwi1
Simulating change in SI as a function of pH over time

Started by DyliS

4 Replies
2215 Views
Last post 12/05/23 14:51
by dlparkhurst
CO2 Capture by Steel Slag Heap

Started by Erdinc

3 Replies
1596 Views
Last post 11/05/23 16:50
by dlparkhurst
Calcite Solubility vs T (I get wrong results)

Started by Salem

3 Replies
1597 Views
Last post 30/04/23 13:55
by Salem
Methylmercury speciation

Started by Chrysius

1 Replies
1428 Views
Last post 24/04/23 12:09
by dlparkhurst
Lab-Titration versus PHREEQC-Alkalinity (at high CO2 concentrations)

Started by Felix

2 Replies
1266 Views
Last post 24/04/23 00:23
by Felix
Adding a new graph to the graph of multiple mixes

Started by MichaelZ20

2 Replies
1318 Views
Last post 21/04/23 17:22
by MichaelZ20
Reaction Enthalpy for Calcite in phreeqc.dat

Started by Salem

3 Replies
1432 Views
Last post 19/04/23 18:53
by dlparkhurst
One major restriction on the rewriting capabilities for aqueous species

Started by RayTherminator

2 Replies
1364 Views
Last post 18/04/23 16:51
by RayTherminator
Aeration/Iron-Oxidation as a Kinetic Process

Started by hobbit1998

3 Replies
1471 Views
Last post 10/04/23 16:03
by dlparkhurst
Calculating meq/l from meq/kg CEC (fractured rock)

Started by Felix

4 Replies
1920 Views
Last post 09/04/23 15:07
by Felix
Surface complexation and error with loading database file

Started by hobbit1998

1 Replies
1244 Views
Last post 08/04/23 15:01
by dlparkhurst
Adding a chemical to a groundwater and tracking pH change

Started by hobbit1998

3 Replies
1573 Views
Last post 08/04/23 14:36
by dlparkhurst
Binary interaction coefficients for multicomponent gas phase

Started by ekeskin

3 Replies
1416 Views
Last post 29/03/23 00:12
by dlparkhurst
first steps

Started by INZILLO

28 Replies
4761 Views
Last post 11/03/23 16:45
by INZILLO
Interpretting Output file

Started by Agabamud

7 Replies
2035 Views
Last post 09/03/23 15:39
by dlparkhurst
Gas phase mol increase

Started by dat

27 Replies
3729 Views
Last post 08/03/23 08:25
by dlparkhurst
PHREEQC in R ( phreeqc Package )

Started by azzeddine

7 Replies
2694 Views
Last post 08/03/23 03:35
by eeroden
same CO2 solubility with different brine concentrations?

Started by maria

5 Replies
1750 Views
Last post 20/02/23 16:32
by dlparkhurst
Different saturation indices at different conditions

Started by maria

2 Replies
1416 Views
Last post 07/02/23 13:11
by maria
Saturation Index in output file not log(IAP/Ksp) ?

Started by GTG

3 Replies
2805 Views
Last post 02/02/23 15:09
by dlparkhurst
Specify "charge" in a multi-solution input file?

Started by toupis12

1 Replies
1285 Views
Last post 30/01/23 19:51
by dlparkhurst
Geothermal solution modelling

Started by maria

9 Replies
2088 Views
Last post 30/01/23 17:05
by maria
GPU usage for IPhreeqc

Started by Wonwoo Yoon

3 Replies
1618 Views
Last post 26/01/23 03:53
by dlparkhurst
Running PHREEQC on Matlab Using Mac

Started by Nic

2 Replies
1861 Views
Last post 19/01/23 17:10
by charlton
Gas solubilities in liquid solutions

Started by micho_95

2 Replies
1643 Views
Last post 16/01/23 21:50
by micho_95
Davies equation in PHREEQC

Started by Wonwoo Yoon

5 Replies
1548 Views
Last post 13/01/23 22:52
by dlparkhurst
Add gas to solution to get gas solubility at high pressures

Started by ekeskin

13 Replies
3580 Views
Last post 12/01/23 10:50
by ekeskin
SURFACE block units

Started by Nic

3 Replies
1332 Views
Last post 09/01/23 22:53
by dlparkhurst
Negative values of the total concentration of primary components as inputs

Started by Sara Tabrizi

5 Replies
1736 Views
Last post 16/12/22 19:43
by Sara Tabrizi
Starting with PHREEQC

Started by Salem

1 Replies
1776 Views
Last post 18/11/22 16:04
by dlparkhurst
Resources for setting up input file for marine CO2 modeling?

Started by mcringham

3 Replies
2282 Views
Last post 17/11/22 20:42
by dlparkhurst
Activity Coefficient Models

Started by Salem

2 Replies
1744 Views
Last post 15/11/22 12:50
by Salem
USER_GRAPH

Started by ani.dol

2 Replies
1484 Views
Last post 08/11/22 12:28
by ani.dol
Bicarbonate input

Started by rapheul

10 Replies
7315 Views
Last post 01/11/22 22:52
by pawanagra0@gmail.com
Database Error

Started by victoriaade

11 Replies
2745 Views
Last post 28/10/22 12:29
by victoriaade
problems of Species Plot

Started by Xavier.Qiu

5 Replies
2384 Views
Last post 23/09/22 17:47
by dlparkhurst
USER_GRAPH Questions

Started by davidblevy

2 Replies
1655 Views
Last post 31/08/22 19:29
by davidblevy
convert meq/kgw to meq/L in alkalinity and convergence error

Started by Chatura

5 Replies
2303 Views
Last post 31/08/22 14:25
by dlparkhurst
Calculate resulting pH by mixing 2 solutions

Started by temo

1 Replies
1580 Views
Last post 23/08/22 20:03
by dlparkhurst
Distribution of Species Molality Question

Started by zackh

1 Replies
1547 Views
Last post 15/08/22 19:24
by dlparkhurst
How to add brine solution in PHREEQC

Started by maria

8 Replies
2974 Views
Last post 07/08/22 22:58
by dlparkhurst
Definition of saturation index SI/ documentation of version 3

Started by d_guse

3 Replies
2317 Views
Last post 05/08/22 14:28
by dlparkhurst
Single Stage Mine Water Treatment with Aeration

Started by Onur

3 Replies
1800 Views
Last post 18/07/22 16:11
by dlparkhurst
Add hydrogen peroxide

Started by matzanaroc

1 Replies
2220 Views
Last post 16/07/22 15:46
by dlparkhurst
Calculation of precipitated solid volume / Alkaline Reagent Consumption

Started by Onur

7 Replies
2337 Views
Last post 04/07/22 21:05
by bobolovac
Pitzer act. coefficients for carbonate w/ dissociation constants by Millero 2006

Started by Piet_

10 Replies
3434 Views
Last post 12/06/22 07:37
by Piet_
Basic question about Selected_Output

Started by pdomski

2 Replies
2019 Views
Last post 11/06/22 22:11
by pdomski
Failing to converge SOLUTION keyword with water identifier

Started by smidera

2 Replies
1612 Views
Last post 31/05/22 21:51
by smidera
Solubility of hydroxides in water as a function of pH

Started by ChemInd74

1 Replies
1697 Views
Last post 29/05/22 18:10
by dlparkhurst
Simulation of Aeration in PHREEQC and Using Reactants

Started by Onur

4 Replies
1897 Views
Last post 25/05/22 20:55
by Onur
save mix_equilibrium_phases as a new equilibrium phases

Started by Antonio

1 Replies
1647 Views
Last post 19/05/22 15:16
by dlparkhurst
Mineral dissolution/precipitation for CO2 injection

Started by 261239

1 Replies
1858 Views
Last post 06/05/22 16:05
by dlparkhurst
EXCHANGE module and relation to sorption isotherms

Started by larsaste

4 Replies
1875 Views
Last post 01/04/22 09:11
by larsaste
Should the known pKa for an acid be set in PHASES or in SOLUTION_SPECIES?

Started by MichaelZ20

1 Replies
1763 Views
Last post 13/01/22 21:17
by dlparkhurst
Specific Conductance calculation

Started by Isil

6 Replies
2548 Views
Last post 16/12/21 15:37
by dlparkhurst
calculate CO2 solubility in brine composition

Started by maria

5 Replies
2891 Views
Last post 12/12/21 20:02
by dlparkhurst
PCO2 Equilibrium from Contact with Ca

Started by teimah

2 Replies
2032 Views
Last post 30/11/21 18:52
by teimah
A problem with ADVECTION modeling

Started by MichaelZ20

3 Replies
1995 Views
Last post 28/11/21 06:37
by MichaelZ20
K-struvite precipitation

Started by Cami

4 Replies
2227 Views
Last post 22/11/21 16:33
by Cami
What's the exact meaning or the formal name of "SiO2(a)"

Started by Smith.Z

5 Replies
2391 Views
Last post 18/11/21 02:29
by Smith.Z
Sequence of PHREEQC calculations

Started by MichaelZ20

1 Replies
1706 Views
Last post 11/11/21 22:07
by dlparkhurst
Calculation of the exchanger composition changes pe?

Started by MichaelZ20

1 Replies
1576 Views
Last post 04/11/21 18:16
by dlparkhurst
Alkalinity not converging - alkalinity input as C(4)

Started by pvignoni

2 Replies
2382 Views
Last post 27/10/21 12:36
by pvignoni
Creat a solution with dissolved oxygen and dissolved organic carbon

Started by Zhaoyang

19 Replies
5080 Views
Last post 19/10/21 13:48
by Zhaoyang
Question of the Gaines-Thomas convention in PHREEQC

Started by Jeonghwan Hwang

1 Replies
1779 Views
Last post 13/10/21 15:54
by dlparkhurst
KINETICS and REACTION in the context of pyrite oxidation

Started by emkau

1 Replies
2192 Views
Last post 08/10/21 16:08
by dlparkhurst
Obtain selected output from PhreeqcRM

Started by Ellis

10 Replies
2583 Views
Last post 04/10/21 17:29
by Ellis
Can a REACTION_PRESSURE be applied to a whole SOLUTION_SPREAD?

Started by geomorgski

3 Replies
1927 Views
Last post 22/09/21 16:50
by dlparkhurst
Additional software information

Started by AnnaJulIQ

3 Replies
1811 Views
Last post 19/09/21 01:35
by dlparkhurst
charge balance error

Started by hyedy

1 Replies
3750 Views
Last post 09/09/21 10:27
by dlparkhurst
pH variations with reaction pressure and temperature

Started by Franco Galarce

1 Replies
1920 Views
Last post 14/08/21 00:03
by dlparkhurst
Question about the results according to the concentration of cesium

Started by Jeonghwan Hwang

3 Replies
2639 Views
Last post 29/07/21 15:05
by dlparkhurst
working of phreeqc

Started by rimsi

2 Replies
2139 Views
Last post 12/07/21 07:23
by rimsi
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