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Subject / Started by Replies / Views Last post
need help fixing pH

Started by wasylenki

14 Replies
9667 Views
Last post December 24, 2021, 06:28:47 AM
by MichaelZ20
Evaporate a solution using PHREEQC

Started by Tom

6 Replies
6749 Views
Last post February 04, 2021, 02:54:22 PM
by dlparkhurst
Converting from molality (mol/kgw) to mg/l for high solubility minerals

Started by Tom

24 Replies
15116 Views
Last post March 20, 2020, 12:11:40 PM
by GeeqC
alkalinity confusion

Started by deso

5 Replies
10108 Views
Last post February 22, 2016, 11:35:50 PM
by deso
Alkalinity and HCO3- how we put in Phreeqc?

Started by Carla

3 Replies
8608 Views
Last post May 25, 2014, 07:46:13 PM
by Carla
Approaches for pH (estimation, fixing etc...)

Started by Tom

0 Replies
8372 Views
Last post May 04, 2014, 10:43:37 AM
by Tom
CINETIQUE DE LA DISSOLUTION DU QUARTZ

Started by LAMINE

1 Replies
44 Views
Last post September 21, 2023, 09:06:35 PM
by dlparkhurst
EFFECT OF NaCl, KCl and CaCl2 in solubility of Calcite

Started by onat.yakisik

1 Replies
61 Views
Last post September 11, 2023, 03:35:28 PM
by dlparkhurst
Thermodynamic data

Started by onat.yakisik

1 Replies
80 Views
Last post September 05, 2023, 01:51:02 PM
by dlparkhurst
Density calculation and mole concentration of components

Started by Hashemi

2 Replies
99 Views
Last post August 29, 2023, 03:35:25 PM
by Hashemi
USER_Graph with pH-Value and SI

Started by eismann

1 Replies
64 Views
Last post August 27, 2023, 05:47:40 PM
by dlparkhurst
Ionic strength reported and manually calculated are not consistent

Started by klk

3 Replies
115 Views
Last post August 26, 2023, 11:14:42 PM
by dlparkhurst
Inconsistent amounts of elements when input is in mg/L

Started by klk

4 Replies
130 Views
Last post August 20, 2023, 04:33:32 AM
by dlparkhurst
Calcium hydroxyphosphate(Ca5(PO4)3OH)

Started by melaniewalker

1 Replies
107 Views
Last post August 11, 2023, 03:38:14 PM
by dlparkhurst
Guide on running a simple example and seeing the results with PHREEQCRM

Started by 1byte

10 Replies
211 Views
Last post August 10, 2023, 02:38:52 PM
by dlparkhurst
Calculatinh pH value from Major ion concnetrations

Started by kbrohith

1 Replies
88 Views
Last post August 07, 2023, 02:33:48 PM
by dlparkhurst
pH increases after the concentration of a solution

Started by dmcv

1 Replies
120 Views
Last post July 25, 2023, 04:56:00 PM
by dlparkhurst
adding alo2- as solution species is not working

Started by maria

2 Replies
92 Views
Last post July 24, 2023, 07:38:48 PM
by maria
How to define mol amount for basalts for CO2-rock-brine interactions

Started by maria

6 Replies
209 Views
Last post July 09, 2023, 09:18:58 AM
by maria
Apply reaction to array of solutions

Started by GeeqC

3 Replies
130 Views
Last post June 20, 2023, 10:50:51 PM
by dlparkhurst
Speciation calculations for chemicals and defining DOC in PHREEQC.

Started by hobbit1998

1 Replies
106 Views
Last post June 17, 2023, 08:44:24 PM
by dlparkhurst
Incremental mixing

Started by tcotterell

3 Replies
171 Views
Last post June 08, 2023, 08:27:33 PM
by dlparkhurst
USER_GRAPH

Started by MichaelZ20

4 Replies
164 Views
Last post June 07, 2023, 06:29:18 PM
by MichaelZ20
How to see the effect of an increased pH on a composition of water

Started by akaess

1 Replies
134 Views
Last post June 05, 2023, 03:32:12 PM
by dlparkhurst
Defining the amount of moles in "EQUILIBRIUM_PHASES"

Started by seanshi40@gmail.com

4 Replies
181 Views
Last post June 04, 2023, 08:50:41 AM
by seanshi40@gmail.com
Solubility of Fe(OH)3(a) in presence of Goethite

Started by arif

2 Replies
118 Views
Last post June 03, 2023, 10:38:14 PM
by arif
help with initial condition for H2 reduction

Started by amaury22

9 Replies
227 Views
Last post June 02, 2023, 04:06:29 AM
by amaury22
MINERAL CHANGE WITH RESPECT TO TIME

Started by kennedyantwi1

4 Replies
219 Views
Last post May 20, 2023, 11:11:13 PM
by kennedyantwi1
Hydrogen peroxide solution

Started by Tom

5 Replies
2824 Views
Last post May 18, 2023, 10:16:35 AM
by AntonioG
How to model the Effect of CO2-brine-rock mineral interactions on porosity

Started by kennedyantwi1

15 Replies
423 Views
Last post May 17, 2023, 04:37:08 PM
by kennedyantwi1
Simulating change in SI as a function of pH over time

Started by DyliS

4 Replies
596 Views
Last post May 12, 2023, 02:51:31 PM
by dlparkhurst
CO2 Capture by Steel Slag Heap

Started by Erdinc

3 Replies
234 Views
Last post May 11, 2023, 04:50:27 PM
by dlparkhurst
Calcite Solubility vs T (I get wrong results)

Started by Salem

3 Replies
246 Views
Last post April 30, 2023, 01:55:02 PM
by Salem
Methylmercury speciation

Started by Chrysius

1 Replies
158 Views
Last post April 24, 2023, 12:09:08 PM
by dlparkhurst
Lab-Titration versus PHREEQC-Alkalinity (at high CO2 concentrations)

Started by Felix

2 Replies
173 Views
Last post April 24, 2023, 12:23:33 AM
by Felix
Adding a new graph to the graph of multiple mixes

Started by MichaelZ20

2 Replies
132 Views
Last post April 21, 2023, 05:22:47 PM
by MichaelZ20
Reaction Enthalpy for Calcite in phreeqc.dat

Started by Salem

3 Replies
167 Views
Last post April 19, 2023, 06:53:24 PM
by dlparkhurst
One major restriction on the rewriting capabilities for aqueous species

Started by RayTherminator

2 Replies
160 Views
Last post April 18, 2023, 04:51:45 PM
by RayTherminator
Aeration/Iron-Oxidation as a Kinetic Process

Started by hobbit1998

3 Replies
213 Views
Last post April 10, 2023, 04:03:27 PM
by dlparkhurst
Calculating meq/l from meq/kg CEC (fractured rock)

Started by Felix

4 Replies
411 Views
Last post April 09, 2023, 03:07:52 PM
by Felix
Surface complexation and error with loading database file

Started by hobbit1998

1 Replies
134 Views
Last post April 08, 2023, 03:01:08 PM
by dlparkhurst
Adding a chemical to a groundwater and tracking pH change

Started by hobbit1998

3 Replies
191 Views
Last post April 08, 2023, 02:36:38 PM
by dlparkhurst
Binary interaction coefficients for multicomponent gas phase

Started by ekeskin

3 Replies
210 Views
Last post March 29, 2023, 12:12:01 AM
by dlparkhurst
first steps

Started by INZILLO

28 Replies
1028 Views
Last post March 11, 2023, 04:45:56 PM
by INZILLO
Interpretting Output file

Started by Agabamud

7 Replies
337 Views
Last post March 09, 2023, 03:39:56 PM
by dlparkhurst
Gas phase mol increase

Started by dat

27 Replies
639 Views
Last post March 08, 2023, 08:25:27 AM
by dlparkhurst
PHREEQC in R ( phreeqc Package )

Started by azzeddine

7 Replies
740 Views
Last post March 08, 2023, 03:35:24 AM
by eeroden
same CO2 solubility with different brine concentrations?

Started by maria

5 Replies
221 Views
Last post February 20, 2023, 04:32:56 PM
by dlparkhurst
Different saturation indices at different conditions

Started by maria

2 Replies
194 Views
Last post February 07, 2023, 01:11:20 PM
by maria
Saturation Index in output file not log(IAP/Ksp) ?

Started by GTG

3 Replies
938 Views
Last post February 02, 2023, 03:09:28 PM
by dlparkhurst
Specify "charge" in a multi-solution input file?

Started by toupis12

1 Replies
173 Views
Last post January 30, 2023, 07:51:28 PM
by dlparkhurst
Geothermal solution modelling

Started by maria

9 Replies
424 Views
Last post January 30, 2023, 05:05:16 PM
by maria
GPU usage for IPhreeqc

Started by Wonwoo Yoon

3 Replies
263 Views
Last post January 26, 2023, 03:53:27 AM
by dlparkhurst
Running PHREEQC on Matlab Using Mac

Started by Nic

2 Replies
336 Views
Last post January 19, 2023, 05:10:20 PM
by charlton
Gas solubilities in liquid solutions

Started by micho_95

2 Replies
357 Views
Last post January 16, 2023, 09:50:21 PM
by micho_95
Davies equation in PHREEQC

Started by Wonwoo Yoon

5 Replies
214 Views
Last post January 13, 2023, 10:52:23 PM
by dlparkhurst
Add gas to solution to get gas solubility at high pressures

Started by ekeskin

13 Replies
740 Views
Last post January 12, 2023, 10:50:20 AM
by ekeskin
SURFACE block units

Started by Nic

3 Replies
213 Views
Last post January 09, 2023, 10:53:43 PM
by dlparkhurst
Negative values of the total concentration of primary components as inputs

Started by Sara Tabrizi

5 Replies
334 Views
Last post December 16, 2022, 07:43:15 PM
by Sara Tabrizi
Starting with PHREEQC

Started by Salem

1 Replies
327 Views
Last post November 18, 2022, 04:04:01 PM
by dlparkhurst
Resources for setting up input file for marine CO2 modeling?

Started by mcringham

3 Replies
376 Views
Last post November 17, 2022, 08:42:57 PM
by dlparkhurst
Activity Coefficient Models

Started by Salem

2 Replies
265 Views
Last post November 15, 2022, 12:50:28 PM
by Salem
USER_GRAPH

Started by ani.dol

2 Replies
289 Views
Last post November 08, 2022, 12:28:41 PM
by ani.dol
Bicarbonate input

Started by rapheul

10 Replies
4577 Views
Last post November 01, 2022, 10:52:17 PM
by pawanagra0@gmail.com
Database Error

Started by victoriaade

11 Replies
556 Views
Last post October 28, 2022, 12:29:42 PM
by victoriaade
problems of Species Plot

Started by Xavier.Qiu

5 Replies
572 Views
Last post September 23, 2022, 05:47:25 PM
by dlparkhurst
USER_GRAPH Questions

Started by davidblevy

2 Replies
348 Views
Last post August 31, 2022, 07:29:40 PM
by davidblevy
convert meq/kgw to meq/L in alkalinity and convergence error

Started by Chatura

5 Replies
498 Views
Last post August 31, 2022, 02:25:38 PM
by dlparkhurst
Calculate resulting pH by mixing 2 solutions

Started by temo

1 Replies
345 Views
Last post August 23, 2022, 08:03:59 PM
by dlparkhurst
Distribution of Species Molality Question

Started by zackh

1 Replies
360 Views
Last post August 15, 2022, 07:24:22 PM
by dlparkhurst
How to add brine solution in PHREEQC

Started by maria

8 Replies
797 Views
Last post August 07, 2022, 10:58:30 PM
by dlparkhurst
Definition of saturation index SI/ documentation of version 3

Started by d_guse

3 Replies
910 Views
Last post August 05, 2022, 02:28:04 PM
by dlparkhurst
Single Stage Mine Water Treatment with Aeration

Started by Onur

3 Replies
414 Views
Last post July 18, 2022, 04:11:30 PM
by dlparkhurst
Calculation of precipitated solid volume / Alkaline Reagent Consumption

Started by Onur

7 Replies
609 Views
Last post July 04, 2022, 09:05:19 PM
by bobolovac
Pitzer act. coefficients for carbonate w/ dissociation constants by Millero 2006

Started by Piet_

10 Replies
1111 Views
Last post June 12, 2022, 07:37:51 AM
by Piet_
Basic question about Selected_Output

Started by pdomski

2 Replies
488 Views
Last post June 11, 2022, 10:11:04 PM
by pdomski
Failing to converge SOLUTION keyword with water identifier

Started by smidera

2 Replies
387 Views
Last post May 31, 2022, 09:51:52 PM
by smidera
Solubility of hydroxides in water as a function of pH

Started by ChemInd74

1 Replies
443 Views
Last post May 29, 2022, 06:10:15 PM
by dlparkhurst
Simulation of Aeration in PHREEQC and Using Reactants

Started by Onur

4 Replies
483 Views
Last post May 25, 2022, 08:55:37 PM
by Onur
save mix_equilibrium_phases as a new equilibrium phases

Started by Antonio

1 Replies
358 Views
Last post May 19, 2022, 03:16:35 PM
by dlparkhurst
Mineral dissolution/precipitation for CO2 injection

Started by 261239

1 Replies
524 Views
Last post May 06, 2022, 04:05:19 PM
by dlparkhurst
EXCHANGE module and relation to sorption isotherms

Started by larsaste

4 Replies
517 Views
Last post April 01, 2022, 09:11:21 AM
by larsaste
Should the known pKa for an acid be set in PHASES or in SOLUTION_SPECIES?

Started by MichaelZ20

1 Replies
529 Views
Last post January 13, 2022, 09:17:46 PM
by dlparkhurst
Specific Conductance calculation

Started by Isil

6 Replies
943 Views
Last post December 16, 2021, 03:37:52 PM
by dlparkhurst
calculate CO2 solubility in brine composition

Started by maria

5 Replies
961 Views
Last post December 12, 2021, 08:02:24 PM
by dlparkhurst
PCO2 Equilibrium from Contact with Ca

Started by teimah

2 Replies
626 Views
Last post November 30, 2021, 06:52:02 PM
by teimah
A problem with ADVECTION modeling

Started by MichaelZ20

3 Replies
587 Views
Last post November 28, 2021, 06:37:55 AM
by MichaelZ20
K-struvite precipitation

Started by Cami

4 Replies
684 Views
Last post November 22, 2021, 04:33:20 PM
by Cami
What's the exact meaning or the formal name of "SiO2(a)"

Started by Smith.Z

5 Replies
600 Views
Last post November 18, 2021, 02:29:13 AM
by Smith.Z
Sequence of PHREEQC calculations

Started by MichaelZ20

1 Replies
518 Views
Last post November 11, 2021, 10:07:31 PM
by dlparkhurst
Calculation of the exchanger composition changes pe?

Started by MichaelZ20

1 Replies
452 Views
Last post November 04, 2021, 06:16:01 PM
by dlparkhurst
Alkalinity not converging - alkalinity input as C(4)

Started by pvignoni

2 Replies
658 Views
Last post October 27, 2021, 12:36:57 PM
by pvignoni
Creat a solution with dissolved oxygen and dissolved organic carbon

Started by Zhaoyang

19 Replies
1827 Views
Last post October 19, 2021, 01:48:19 PM
by Zhaoyang
Question of the Gaines-Thomas convention in PHREEQC

Started by Jeonghwan Hwang

1 Replies
532 Views
Last post October 13, 2021, 03:54:18 PM
by dlparkhurst
KINETICS and REACTION in the context of pyrite oxidation

Started by emkau

1 Replies
727 Views
Last post October 08, 2021, 04:08:55 PM
by dlparkhurst
Obtain selected output from PhreeqcRM

Started by Ellis

10 Replies
706 Views
Last post October 04, 2021, 05:29:08 PM
by Ellis
Can a REACTION_PRESSURE be applied to a whole SOLUTION_SPREAD?

Started by geomorgski

3 Replies
606 Views
Last post September 22, 2021, 04:50:42 PM
by dlparkhurst
Additional software information

Started by AnnaJulIQ

3 Replies
522 Views
Last post September 19, 2021, 01:35:26 AM
by dlparkhurst
charge balance error

Started by hyedy

1 Replies
1235 Views
Last post September 09, 2021, 10:27:45 AM
by dlparkhurst
pH variations with reaction pressure and temperature

Started by Franco Galarce

1 Replies
643 Views
Last post August 14, 2021, 12:03:44 AM
by dlparkhurst
Question about the results according to the concentration of cesium

Started by Jeonghwan Hwang

3 Replies
1228 Views
Last post July 29, 2021, 03:05:35 PM
by dlparkhurst
working of phreeqc

Started by rimsi

2 Replies
769 Views
Last post July 12, 2021, 07:23:38 AM
by rimsi
Introduce substances into solution

Started by AnnaJulIQ

1 Replies
748 Views
Last post June 17, 2021, 10:18:09 PM
by dlparkhurst
pH of initial solution in atmospheric equilibrium?

Started by a88y

3 Replies
926 Views
Last post June 16, 2021, 10:09:34 PM
by dlparkhurst
INTERPRETATION OF RESULTS

Started by SofiaHerrera

1 Replies
726 Views
Last post June 11, 2021, 11:14:08 PM
by dlparkhurst
calculation the analytical

Started by ehsan

1 Replies
778 Views
Last post June 01, 2021, 02:32:42 PM
by dlparkhurst
Nitrate-Rock Interaction

Started by jeffery79

7 Replies
882 Views
Last post May 28, 2021, 11:35:38 PM
by dlparkhurst
Sulfur Unit conversion

Started by Siggi

2 Replies
595 Views
Last post May 28, 2021, 07:28:04 AM
by Siggi
Solution of water containing boric acid

Started by SA8416

3 Replies
848 Views
Last post May 19, 2021, 07:33:27 PM
by dlparkhurst
Zeolite composition

Started by javiera.aedo

2 Replies
705 Views
Last post May 12, 2021, 11:04:03 PM
by javiera.aedo
Doubt: Activity of water has not converged

Started by AnnaJulIQ

7 Replies
1070 Views
Last post May 04, 2021, 04:57:43 AM
by dlparkhurst
Changing database in Phreeplot

Started by jt2020

2 Replies
804 Views
Last post April 30, 2021, 11:46:18 AM
by jt2020
How to covert html file into ppi file?

Started by Johnson@YSY

1 Replies
565 Views
Last post April 15, 2021, 09:01:47 AM
by Rasmus
How to create a new ppi file

Started by Johnson@YSY

5 Replies
608 Views
Last post April 14, 2021, 03:51:42 AM
by dlparkhurst
How to download PhreePlot example ?

Started by Johnson@YSY

1 Replies
595 Views
Last post April 13, 2021, 04:07:31 PM
by dlparkhurst
Eh-pH diagram for As

Started by Johnson@YSY

3 Replies
628 Views
Last post April 12, 2021, 04:34:19 PM
by dlparkhurst
Self-Scaling in producer by PHREEQC

Started by trungka

1 Replies
571 Views
Last post April 12, 2021, 04:27:10 PM
by dlparkhurst
Speciation plots

Started by AnnaJulIQ

1 Replies
978 Views
Last post March 27, 2021, 03:05:20 PM
by dlparkhurst
Partial pressure GAS_PHASE input

Started by Franco Galarce

1 Replies
743 Views
Last post March 27, 2021, 02:48:12 PM
by dlparkhurst
using enthalpy of solution species (delta_h) in BASIC calculations

Started by francesco

8 Replies
2153 Views
Last post March 12, 2021, 04:53:19 PM
by sestes
Question about Phase Names

Started by jlucas91

4 Replies
897 Views
Last post March 10, 2021, 06:04:20 PM
by dlparkhurst
how to input POC concentration and specify how much dissolved/particulate metals

Started by chiko

2 Replies
725 Views
Last post March 05, 2021, 03:55:43 AM
by chiko
How to perform sequential equilibrations with Solution Spread

Started by peterwadeuk

2 Replies
703 Views
Last post February 24, 2021, 09:44:33 AM
by peterwadeuk
how to calculate the max CO2 to be dissolved at high temperature and pressure

Started by maria

12 Replies
1529 Views
Last post February 05, 2021, 08:27:10 PM
by maria
Difference between Van't Hoff and analytical expression provided in LLNL.DAT

Started by Jeonghwan Hwang

2 Replies
934 Views
Last post February 01, 2021, 05:20:47 AM
by Jeonghwan Hwang
Adding elements to data base

Started by Franco Galarce

5 Replies
1347 Views
Last post January 28, 2021, 03:15:42 AM
by dlparkhurst
C indicates CO3-2 or HCO3-

Started by Zhaoyang

1 Replies
882 Views
Last post January 25, 2021, 09:22:14 PM
by dlparkhurst
Mass of water question

Started by Olasz Tamas

4 Replies
935 Views
Last post January 22, 2021, 09:04:27 AM
by Olasz Tamas
Transport and kinetics (phase assemblage)

Started by wendeer

4 Replies
912 Views
Last post January 21, 2021, 10:11:48 PM
by wendeer
Limitations with a low mass of water?

Started by Charlie

1 Replies
660 Views
Last post January 21, 2021, 04:45:30 PM
by dlparkhurst
A change in ionic strength at ethanol addition

Started by MichaelZ20

4 Replies
963 Views
Last post January 17, 2021, 05:55:57 PM
by MichaelZ20
S(6) convergence issues for environmental samples

Started by aleoconn

4 Replies
859 Views
Last post December 22, 2020, 11:41:33 PM
by aleoconn
Input Definition for Ex-changer

Started by snjaykdubey

6 Replies
2730 Views
Last post December 17, 2020, 04:46:36 PM
by dlparkhurst
how can I add both CO3 and HCO3 in phreeqc?

Started by maria

2 Replies
1079 Views
Last post December 10, 2020, 08:43:41 PM
by maria
Easy solution speciation plots

Started by Charlie

0 Replies
853 Views
Last post November 26, 2020, 09:43:25 AM
by Charlie
HCO3- / CO3-2 distribution

Started by liakos

2 Replies
1346 Views
Last post November 20, 2020, 09:47:44 AM
by liakos
Question about Fix_pH

Started by Zhaoyang

3 Replies
977 Views
Last post November 12, 2020, 10:17:07 PM
by dlparkhurst
Elements in species not tabulated or defined

Started by mbcomins

2 Replies
1124 Views
Last post November 08, 2020, 09:21:41 PM
by mbcomins
Trace Saturation indice and pH vs NO3-

Started by PAILLEF

3 Replies
921 Views
Last post November 02, 2020, 09:51:53 PM
by dlparkhurst
Phreeqc Coupled with Matlab

Started by hagar.haithm@gmail.com

2 Replies
1082 Views
Last post October 31, 2020, 11:55:58 AM
by hagar.haithm@gmail.com
Mass of water in kinetically controlled simulation

Started by Ucef

4 Replies
1057 Views
Last post October 08, 2020, 09:08:37 PM
by Ucef
How to correct degasing CO2 from Calcite saturation Index

Started by genIm

15 Replies
4382 Views
Last post October 08, 2020, 08:59:28 AM
by tOehler
Question about gas solubility calculation in Phreeqc

Started by Christinali91

1 Replies
1053 Views
Last post September 17, 2020, 08:42:45 PM
by dlparkhurst
difference between ionic forms

Started by Scarlet

5 Replies
1580 Views
Last post September 13, 2020, 07:16:02 PM
by dlparkhurst
pH ajustment

Started by waterterre

6 Replies
3740 Views
Last post August 29, 2020, 10:06:12 PM
by brunagr
Use previous SOLUTION and EQUILIBRIUM_PHASES but not REACTIONS in TRANSPORT?

Started by gpflach

1 Replies
868 Views
Last post August 23, 2020, 05:25:25 AM
by dlparkhurst
Element name for RM_GetConcentrations

Started by Yongqiang

1 Replies
595 Views
Last post August 18, 2020, 05:05:01 PM
by Yongqiang
Peracetic acid

Started by brunagr

2 Replies
793 Views
Last post July 31, 2020, 06:35:06 PM
by brunagr
Density calculation - program limit

Started by MichaelZ20

2 Replies
775 Views
Last post July 20, 2020, 05:55:09 PM
by MichaelZ20
Neutralization reaction

Started by lilifamozurrutia

2 Replies
869 Views
Last post July 11, 2020, 02:30:20 AM
by lilifamozurrutia
Calculating the density

Started by Zhaoyang

1 Replies
861 Views
Last post June 27, 2020, 03:10:21 PM
by dlparkhurst
Modeling a closed and open system for an alkalinity titration.

Started by jlucas91

4 Replies
854 Views
Last post June 26, 2020, 06:47:54 PM
by jlucas91
PHREEQC combining with another programm for the transport simulaton

Started by SCH

0 Replies
705 Views
Last post June 17, 2020, 06:15:46 PM
by SCH
EQUI and EQUI_DELTA

Started by Zhaoyang

6 Replies
1002 Views
Last post June 09, 2020, 08:59:42 PM
by Zhaoyang
Question Regarding the MIX command

Started by jlucas91

2 Replies
783 Views
Last post June 02, 2020, 02:55:40 PM
by jlucas91
WARNING: Fix_H+, Pure phase with add formula has not converged.

Started by Nlesani75

1 Replies
1002 Views
Last post May 31, 2020, 07:51:49 PM
by dlparkhurst
negative load of organic matter in mEq/l

Started by m.gamrani

3 Replies
811 Views
Last post May 30, 2020, 09:21:31 PM
by dlparkhurst
the concentration (molarity) vs time curve

Started by sama.k

0 Replies
870 Views
Last post May 28, 2020, 02:57:34 PM
by sama.k
How do you obtain the explicit amount of precipitant from a modeled reaction?

Started by jlucas91

2 Replies
1089 Views
Last post May 27, 2020, 06:49:45 PM
by jlucas91
Modeling concentrated aqueous H3PO4 solution with varying temperature

Started by jungsdao

9 Replies
1683 Views
Last post May 26, 2020, 05:19:08 AM
by MichaelZ20
titration site of organic matter

Started by m.gamrani

1 Replies
886 Views
Last post May 25, 2020, 03:15:43 PM
by dlparkhurst
Code for sulfure oxidation (DMA) simulation

Started by SCH

5 Replies
1125 Views
Last post May 22, 2020, 03:41:55 PM
by dlparkhurst
DOC-

Started by m.gamrani

4 Replies
942 Views
Last post May 16, 2020, 07:35:16 PM
by m.gamrani
Aeration of water to remove carbon dioxide

Started by temo

3 Replies
1223 Views
Last post May 14, 2020, 08:48:22 PM
by dlparkhurst
Error convergence modele

Started by m.gamrani

4 Replies
925 Views
Last post May 02, 2020, 04:59:29 PM
by m.gamrani
H4SIO4 in llnl data

Started by m.gamrani

1 Replies
1079 Views
Last post April 17, 2020, 09:41:13 PM
by dlparkhurst
Uraninit(c), what is (c)?

Started by Vokysek

1 Replies
975 Views
Last post April 15, 2020, 08:50:40 PM
by dlparkhurst
Saturation index and DOC

Started by m.gamrani

2 Replies
1211 Views
Last post April 15, 2020, 12:34:03 AM
by m.gamrani
[phreeqc] parallelization acceleration

Started by zhichengcai

2 Replies
1205 Views
Last post April 10, 2020, 05:10:03 PM
by zhichengcai
CO2 dissolution in Na-Ca-S-Cl using the Pitzer database

Started by michaelhenehan

2 Replies
1060 Views
Last post April 07, 2020, 08:38:11 AM
by michaelhenehan
Error in a simple solution with Exchange site

Started by JW

3 Replies
982 Views
Last post April 07, 2020, 02:43:42 AM
by dlparkhurst
Using H2S output Solution 1 in Solution 2

Started by frenzy_geochem

1 Replies
963 Views
Last post April 02, 2020, 04:16:44 PM
by dlparkhurst
Calcite precipitation with Co2 degassing

Started by SsamRroberts

10 Replies
1507 Views
Last post April 01, 2020, 01:48:57 PM
by SsamRroberts
EQUILIBRIUM PHASES fixed pe/pH

Started by frenzy_geochem

3 Replies
1805 Views
Last post March 30, 2020, 12:32:37 PM
by frenzy_geochem
association constants for undefined organic soluble species

Started by joannadziadkowiec

1 Replies
852 Views
Last post March 24, 2020, 10:56:20 PM
by dlparkhurst
MOVED: Database Changelogs?

Started by Charlie

0 Replies
830 Views
Last post March 23, 2020, 01:07:08 PM
by Charlie
Saving all data of a multisteps REACTION calculation

Started by mbrandely

1 Replies
970 Views
Last post March 19, 2020, 02:50:21 PM
by dlparkhurst
Iphreeqc: INCLUDE$ dumpfile and SOLUTION_MODIFY

Started by Minjeong

1 Replies
1099 Views
Last post March 16, 2020, 10:44:19 PM
by dlparkhurst
Difference between entry as mg/kgw and mg/Kgs

Started by ronald.bean@suez.com

1 Replies
1320 Views
Last post March 10, 2020, 05:15:00 AM
by dlparkhurst
Amount of water in solution 1-cells

Started by Olasz Tamas

2 Replies
889 Views
Last post March 04, 2020, 08:41:17 AM
by Olasz Tamas
Fix_Ca

Started by Flopi

2 Replies
992 Views
Last post February 12, 2020, 04:51:36 PM
by Flopi
exception in "solubility increasses with increasing temperature"

Started by pia said

5 Replies
1071 Views
Last post February 06, 2020, 02:32:01 PM
by pia said
Skipping non converging solutions in Solution spread

Started by Charlie

1 Replies
830 Views
Last post February 05, 2020, 03:51:40 PM
by dlparkhurst
On the right usage of KNOBS

Started by Flopi

5 Replies
1074 Views
Last post February 04, 2020, 03:35:37 PM
by dlparkhurst
Estimating Eh using Phreeqc

Started by GCanciani

2 Replies
795 Views
Last post January 31, 2020, 10:26:36 AM
by GCanciani
Fe(OH)3(a) IAP

Started by pia said

2 Replies
901 Views
Last post January 20, 2020, 08:03:41 PM
by pia said
iterations exceeded 100

Started by Sergio913

1 Replies
907 Views
Last post January 17, 2020, 04:08:03 PM
by dlparkhurst
Context for SI Change

Started by lourdsa

1 Replies
790 Views
Last post January 16, 2020, 07:08:58 PM
by dlparkhurst
Definition of acid dissociation in water

Started by Yongqiang

3 Replies
822 Views
Last post January 13, 2020, 02:58:45 PM
by MichaelZ20
IPHREEQC (Specific Heat Capacity & Viscosity)

Started by djb14128

4 Replies
939 Views
Last post January 08, 2020, 05:09:16 PM
by djb14128
sulfate reduction rate calculation from given pore water sulfate profile

Started by Gst932364

2 Replies
920 Views
Last post December 20, 2019, 06:07:25 PM
by Gst932364
Gibbsite solubility curve

Started by woodS

2 Replies
933 Views
Last post December 17, 2019, 10:43:31 PM
by woodS
Determination of pCO2 that produces a given Ca conc. in equilibrium with calcite

Started by MichaelZ20

6 Replies
900 Views
Last post December 17, 2019, 10:00:50 PM
by MichaelZ20
Fe 3+ Hydrolysis through various pH

Started by ajm1992

2 Replies
809 Views
Last post December 17, 2019, 03:27:20 AM
by dlparkhurst
Titrating H2SO4 with two bases

Started by woodS

2 Replies
782 Views
Last post December 17, 2019, 12:27:20 AM
by woodS
Alkalinity input and then output interpretation

Started by Toph

1 Replies
1140 Views
Last post December 12, 2019, 12:15:51 AM
by dlparkhurst
Carbon dioxide ejection

Started by tianshiyu

3 Replies
949 Views
Last post December 11, 2019, 03:25:46 PM
by dlparkhurst
Total Dissolved Solids

Started by djb14128

1 Replies
1140 Views
Last post December 10, 2019, 07:41:08 PM
by dlparkhurst
MOVED: USER_GRAPH and EQUILIBRIUM_PHASES

Started by Charlie

0 Replies
727 Views
Last post December 10, 2019, 11:10:58 AM
by Charlie
MOVED: Kinetic Dissolution of Calcite

Started by Charlie

0 Replies
802 Views
Last post December 10, 2019, 11:10:42 AM
by Charlie
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