PHREEQC Users | Resource for geochemists

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Subject / Started by	Replies / Views	Last post
Enthalpy of Mackinawite precipitaion Started by Sifat Azad Papry	1 Replies 1189 Views	18/10/23 00:09 by dlparkhurst
Phreeqc Python MgOH2 Precipitation Example Started by EV_8221	1 Replies 1336 Views	21/10/23 21:01 by dlparkhurst
dissolution ＆ precipitation thioarsenate Started by chaoyu	1 Replies 2337 Views	27/10/23 05:26 by dlparkhurst
Dolomite and calcite precipitation in geothermal system Started by AntonioG	4 Replies 1722 Views	31/10/23 00:26 by AntonioG
Reaction of Iron with bisulfide Started by Sifat Azad Papry	1 Replies 1123 Views	02/11/23 16:55 by dlparkhurst
Serpentinization Started by Olivine	1 Replies 1564 Views	26/11/23 20:11 by dlparkhurst
Solubility kinetics PHREEQC Started by IliasBouchkira	1 Replies 1262 Views	27/11/23 14:54 by dlparkhurst
Pyrite dissolution at pH range Started by Anvj0705	4 Replies 1515 Views	01/12/23 11:07 by dlparkhurst
Simultaneous dissolution of mineral and CO2 Started by Pakan	5 Replies 1889 Views	22/12/23 21:26 by Pakan
How to save a mixture Aqueous Solution+Solids ? Started by jerome	5 Replies 4157 Views	15/01/24 02:44 by dlparkhurst
Aragonite and Calcite precipitation question Started by Khaled	1 Replies 1216 Views	17/01/24 23:07 by dlparkhurst
Hydrothermal dolomitization Started by Eivind_Vagle	2 Replies 1127 Views	19/01/24 09:45 by Eivind_Vagle
Mean GAM question Started by IliasBouchkira	1 Replies 1245 Views	31/01/24 14:45 by dlparkhurst
sedimentation SiO2 Started by Aksenova	2 Replies 1177 Views	26/02/24 03:54 by Aksenova
Modelling Ca-carbonate precipitation Started by Bulbasaur	6 Replies 1629 Views	13/03/24 10:58 by Bulbasaur
Predict pore water concentrations using other geochem data? Started by FClBrI	1 Replies 1071 Views	14/03/24 15:01 by dlparkhurst
Silicon precipitation Started by Anya	3 Replies 1135 Views	29/03/24 15:40 by dlparkhurst
Hydrogen solubility in distilled water vs pressure Started by MMMM	5 Replies 1569 Views	01/04/24 14:01 by MMMM
Sedimetent as SiO2 Started by Aksenova	28 Replies 3569 Views	10/04/24 09:42 by Aksenova
Cement scCO2 interaction Started by zscowcrofst	4 Replies 1524 Views	17/04/24 02:52 by zscowcrofst
Determine the saturation index (SI) Started by Aksenova	1 Replies 1065 Views	19/04/24 00:03 by dlparkhurst
Reaction-kinetic program failing after 1000 seconds of simulation Started by Nitin	9 Replies 2349 Views	02/05/24 05:09 by dlparkhurst
Saturation index Started by Aksenova	1 Replies 919 Views	07/05/24 14:10 by dlparkhurst
Dissolution reaction of uranium rocks depending on the redox state Started by inhee	3 Replies 1169 Views	08/05/24 00:13 by dlparkhurst
Precipitation rates Started by Ami	4 Replies 1143 Views	10/05/24 15:44 by Ami
Pitzer.dat Started by INZILLO	2 Replies 967 Views	16/05/24 07:07 by INZILLO
Kinetic reaction between groundwater and bentonite Started by Daehyun	4 Replies 1193 Views	22/05/24 07:22 by Daehyun
methane carbon isotopes fractionation Started by Mr.white	0 Replies 824 Views	22/05/24 09:17 by Mr.white
Negative temperature dependency of solubility of Nahcolite , pitzer.dat ? Started by TobiasHogen	2 Replies 875 Views	22/05/24 15:58 by TobiasHogen
Dissolution of phosphates in a granite Started by RadiantRocks23	2 Replies 1218 Views	23/05/24 11:27 by RadiantRocks23
Pore space Started by Aksenova	1 Replies 831 Views	04/06/24 22:35 by dlparkhurst
pH Fix and Precipitation Started by NicolevJ	2 Replies 2798 Views	12/06/24 21:13 by marcomaro90
Heating water in concrete lined borehole - geochemical changes Started by ross	1 Replies 829 Views	14/06/24 15:36 by dlparkhurst
Is it possible to visualize the chemical prediction equilibrium equations? Started by Juan Sebastian	2 Replies 894 Views	15/06/24 00:39 by Juan Sebastian
Mixing and evaporation prior to infiltration Started by Merche	1 Replies 898 Views	16/06/24 20:00 by dlparkhurst
Complete removal of dissolved Fe as saponite Started by leocwang	2 Replies 854 Views	03/07/24 02:10 by leocwang
Dissolution of NO2 Started by Hamed	6 Replies 1054 Views	13/07/24 20:19 by dlparkhurst
Mean ion activity coefficients of NaCl solutions Started by ammonge	2 Replies 967 Views	16/07/24 16:51 by ammonge
Calcite solubility as function of pH - fails at high pH Started by mCPBA	3 Replies 1013 Views	22/07/24 22:56 by dlparkhurst
Calcite dissolution during hydrogen storage Started by MMMM	2 Replies 959 Views	08/08/24 15:03 by MMMM
Beaker Dissolution Started by Bulbasaur	7 Replies 1042 Views	07/10/24 02:28 by dlparkhurst
Plotting Delta Phase Assemblage for Dissolution Started by DvS95	2 Replies 997 Views	09/10/24 20:11 by DvS95
Calcium impact on uranium Started by Chemistry	3 Replies 796 Views	11/10/24 01:56 by Chemistry
Dissolution of CO2 Gas Started by Mgill9460	1 Replies 797 Views	11/10/24 17:17 by dlparkhurst
Hydrogen Storage in Sandstone reservoir Started by Seymensch	2 Replies 736 Views	11/10/24 23:06 by Seymensch
Ba(x)Ra(1-x)SO4 Solid Solution Precipitation Started by lswerhone	1 Replies 734 Views	17/10/24 02:48 by dlparkhurst
Lithium geochemistry Started by ElzaD	2 Replies 836 Views	05/11/24 19:18 by ElzaD
basalt dissolution Started by onat.yakisik	25 Replies 3124 Views	06/11/24 22:03 by dlparkhurst
Hydrogen solubility Started by Seymensch	1 Replies 750 Views	07/11/24 16:36 by dlparkhurst
Setting Solution Volume for Dissolution/Precipitation Reactions Started by ZYWTDaEO6	1 Replies 696 Views	09/11/24 18:01 by dlparkhurst
Partial Pressure of CO2 with respect to pressure Started by serhatttt	1 Replies 707 Views	15/11/24 14:48 by dlparkhurst
Large Percentage Error (up to 47%) in Saturation Index Calculation Started by Fadeji01	1 Replies 630 Views	18/11/24 15:20 by dlparkhurst
Speciation of solution chemistry Started by Anvj0705	7 Replies 969 Views	21/11/24 17:16 by dlparkhurst
Simulating CO₂-Dissolved Solution Interaction with Rock and Cement Min Started by ahmalisha	4 Replies 937 Views	01/12/24 14:39 by dlparkhurst
Could not reduce equation to secondary master species, Y+3. Started by rkramamoorthy	7 Replies 1135 Views	02/12/24 17:34 by dlparkhurst
Correct way to model porosity change Started by Nourah	7 Replies 1349 Views	03/12/24 05:09 by dlparkhurst
Effect of density in Saturation Index Started by DFhidro	1 Replies 643 Views	04/12/24 21:55 by dlparkhurst
Stable phases were obtained even with 0 ppm of ions concentration Started by rkramamoorthy	3 Replies 715 Views	08/12/24 05:22 by dlparkhurst
Geothermal Bore Scaling Started by AntonioG	2 Replies 786 Views	11/12/24 05:41 by AntonioG
Obtaining PHREEQC results in each cell of a 3D PHAST model Started by appups	2 Replies 749 Views	13/12/24 16:26 by dlparkhurst
Possible to add a legend to define time periods on porosity-distance plots? Started by rworden	2 Replies 898 Views	14/12/24 08:38 by rworden
Dissolution of calcite during hydrogen storage in the presence of CO2 and ions Started by MMMM	2 Replies 766 Views	11/01/25 19:53 by MMMM
Modification of Pitzer Ion interaction Parameters Started by RenAmb	1 Replies 390 Views	14/01/25 19:33 by dlparkhurst
Cement Hydration Started by rockson.aluah@und.edu	9 Replies 908 Views	16/01/25 17:42 by dlparkhurst
Add lithium dissociating and hydrolyzing species to code Started by Topskeer	1 Replies 542 Views	28/01/25 15:58 by dlparkhurst
Mineral sediment Started by Anya	1 Replies 484 Views	01/02/25 15:19 by dlparkhurst
Dynamic water volume change in kinetic model Started by conghaoyi	3 Replies 645 Views	13/02/25 18:00 by dlparkhurst
Dissolution of HFO and Release of Arsenic Started by DLipson	4 Replies 594 Views	15/02/25 22:45 by DLipson
Water Rock reaction with Supercritical CO2 Started by zscowcrofst	8 Replies 808 Views	19/02/25 23:07 by zscowcrofst
Negative mols of Si error Started by Mgill9460	8 Replies 848 Views	20/02/25 20:41 by dlparkhurst
Modeling metal hydroxide solubility as a function of ligand concentration Started by Hysu	3 Replies 528 Views	27/02/25 03:00 by dlparkhurst
EQUILIBRIUM_PHASES understand Started by robertaasa	3 Replies 655 Views	27/02/25 17:00 by dlparkhurst
H2S(g) solubility Started by Helge	4 Replies 557 Views	07/03/25 17:38 by dlparkhurst
CO2 dissolved in water to react with rock Started by ahmalisha	12 Replies 1446 Views	08/03/25 17:49 by dlparkhurst
CPS reactivity Started by mmhassan	2 Replies 613 Views	11/03/25 07:05 by mmhassan
Acrylic polymers Started by Mar246Daisy0	2 Replies 512 Views	09/04/25 07:56 by Mar246Daisy0
Sedimentent as SiO2 Started by Aksenova	27 Replies 1873 Views	13/04/25 00:23 by dlparkhurst
SiO2 in different databases Started by Aksenova	1 Replies 469 Views	14/04/25 03:41 by dlparkhurst
Portland Cement Hydration at high temperature Started by chliu8219	3 Replies 369 Views	23/04/25 23:38 by dlparkhurst
Co2 mineralization Started by Amr khan	9 Replies 882 Views	26/04/25 01:46 by Amr khan
Mineral dissolution and precipitation Started by Mira	3 Replies 372 Views	04/05/25 20:44 by dlparkhurst
Dissolution of Ferrihydrite following reaction with organic carbon Started by lswerhone	2 Replies 285 Views	20/05/25 16:00 by lswerhone
Saturation Index vs CO2 addition Started by INZILLO	3 Replies 329 Views	25/05/25 17:54 by dlparkhurst
zeolite dissolution Started by Akhilp123	5 Replies 609 Views	31/05/25 15:05 by dlparkhurst
Arsenopyrite Precipitation, Saturation Index Started by Gunther_Schletter	4 Replies 194 Views	23/06/25 18:14 by Gunther_Schletter
Help with Thermodynamic Modeling of Fluoride Removal via Cryolite Precipitation Started by Norman_Jimenez	3 Replies 108 Views	07/07/25 14:59 by dlparkhurst
Deviation of hydrogen solubilities from experimental values at higher pressures Started by kennedyantwi1	4 Replies 135 Views	10/07/25 02:48 by kennedyantwi1

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