SOLUTION_MASTER_SPECIES
To define the correspondence between an element and aqueous primary and secondarymaster species. In general, SOLUTION_MASTER_SPECIES is used in the file with the thermodynamic database, but additional information can be stored in the input file phreeqc.in. A specific block is available in the HYDRUS-1D GUI to provide additional thermodynamic data (Solute Transport – HP2 Definition: Additions to Thermodynamic Database).
SOLUTION_MASTER_SPECIES
element name, master species, alkalinity, (gram formula weight or formula), gram formula weight element
element name |
An element name or element name followed by a valence in parentheses. The element name must begin with a capital letter, followed by zero or more lower case letters or underscores. |
master species |
The master species of the element including its charge. PHREEQC defines: primary master species: element names does not contain a valence state. secondary master species: element names contains a valence state. Note that the master species must be defined as a solution species in the SOLUTION_SPECIES keyword. |
alkalinity |
Alkalinity contribution of the master species. |
gram formula weight |
Value to convert input in mass units to mole units (see -units). |
formula |
Chemical formula used to calculate the gram formula weight. Gram formula weight and formula are mutually exclusive.
|
gram formula weight for element |
The gram formula weight for the pure element, not for an aqueous species. It is required for primary master species. |