PHREEQC Version 3

Overview of PHREEQC Version 3

Chemical waves of the Belousov reaction that are calculated with PHREEQC.

PHREEQC Version 3 is a computer program written in the C++ programming language that is designed to perform a wide variety of aqueous geochemical calculations. PHREEQC implements several types of aqueous models including two ion-association aqueous models.

Features

•  Version 3.0--Documentation of all features, including high pressure calculations, charting (Windows), Pitzer and SIT activity-coefficient models, CD-MUSIC surface complexation, and isotope capabilities. Updated PhreeqcI. Additional methods for IPhreeqc modules.

•  PhreeqcRM--Reaction module for reactive-transport simulators. Based on IPhreeqc, allows access to all PHREEQC reaction capabilities. Contains methods for initial and boundary conditions, running reactions on all model cells, transfer of data to and from the module, and parallelization by MPI or OpenMP.

Download Current Version of PHREEQC

Graphical User Interfaces

• Windows 32-bit: phreeqci-3.7.1-15876.msi [13M] - Executable, database files, examples, PDF documentation
• Windows 32-bit: Notepad + + interface - Appelo's Notepad + + interface to PHREEQC version 3

Batch Versions of PHREEQC

• Windows 64-bit: phreeqc-3.7.1-15876-x64.msi [16M] - Executable, database files, examples, PDF documentation
• MacOS (OS 10.7 - 10.12) 64bit: phreeqc-3.5.0-14000.dmg [12M] - Executable, database files, examples, and PDF documentation
• Windows (any processor): phreeqc-3.7.1-15876.zip [12M] - Source, CMake, database files, examples, PDF documentation
• Linux (any processor): phreeqc-3.7.1-15876.tar.gz [12M] - Source, configure, database files, examples, PDF documentation

PhreeqcRM Reaction Module for Transport Models

• Windows (any processor): phreeqcrm-3.7.1-15876.zip [7M]  - Source, CMake, database files, examples, HTML documentation
• Any Platform (any processor): phreeqcrm-3.7.1-15876.tar.gz [7M]  - Source, configure, database files, examples, HTML documentation

IPhreeqc Modules

• Windows (any processor): iphreeqc-3.7.1-15876.zip [13M] - Source with CMake, database files, examples, and documentation
• Linux (any processor): iphreeqc-3.7.1-15876.tar.gz [13M] - Source with configure, database files, examples, and documentation
• Windows COM 32-bit: IPhreeqcCOM-3.7.1-15876-win32.msi [4M] - COM server, CHM documentation
• Windows COM 64-bit: IPhreeqcCOM-3.7.1-15876-x64.msi [4M] - COM server, CHM documentation (Both 32-bit and 64-bit COM versions should be installed on 64-bit versions of Windows)

Documentation for PHREEQC

• PHREEQC version 3 Documentation (PDF, 4.2M): Parkhurst, D.L., and Appelo, C.A.J., 2013, Description of input and examples for PHREEQC version 3—A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations: U.S. Geological Survey Techniques and Methods, book 6, chap. A43, 497 p., https://doi.org/10.3133/tm6A43
• PHREEQC version 2 Documentation (PDF, 2.3M)
• Online Version 3 User's Guide
• PhreeqcRM Documentation (HTML)
• Phreeqcl Fact Sheet (PDF, 0.1 M)
• IPhreeqc Modules Documentation (PDF, 0.3M)
• IPhreeqc Documentation (CHM)
• IPhreeqcCOM Documentation (CHM)

Additional Information

General Information

• PHREEQC Abstract
• PhreeqcRM
• IPhreeqc Modules (COM/DLL/Library) Abstract
• PhreeqcI Fact Sheet FS-031-02 (PDF)
• User Rights Notice
• Notes for training course: Geochemistry for Groundwater Systems 2011 (Geochem2011.tgz, Powerpoint and examples, 180M)

Release Notes and Readme Files

• Release notes
• Phreeqc Readme--Windows and Linux Batch Versions
• PHREEQC Readme--MacOS Batch Version For 10.7-10.12
• IPhreeqc Readme
• PhreeqcRM Readme

Other Resources

• Discussion forum: Search for answers, ask a question
• FAQ--Frequently Asked Questions about PHREEQC, PhreeqcI, and Netpath
• Appelo's home page: Information, examples, and training courses
• Mike Mueller's PHREEQPY home page: Using PHREEQC in Python

Software License and Purchase Information

This software is a product of the U.S. Geological Survey, which is part of the U.S. Government.

Cost

This software is freely distributed. There is no fee to download and (or) use this software.

License

Users do not need a license or permission from the USGS to use this software. Users can download and install as many copies of the software as they need.

Public Domain

As a work of the United States Government, this USGS product is in the public domain within the United States. You can copy, modify, distribute, and perform the work, even for commercial purposes, all without asking permission. Additionally, USGS waives copyright and related rights in the work worldwide through CC0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/).