calc_K {kgen}

Calculate a single equilibrium constant

Description

Calculate a single specified stoichiometric equilibrium constant at given temperature, salinity, pressure and the concentration of magnesium, calcium, sulphate, and fluorine.

Usage

calc_K(
  k,
  temp_c = 25,
  sal = 35,
  p_bar = NULL,
  magnesium = 0.0528171,
  calcium = 0.0102821,
  sulphate = NULL,
  fluorine = NULL,
  method = "r_polynomial"
)

calc_Ks(
  ks = NULL,
  temp_c = 25,
  sal = 35,
  p_bar = NULL,
  magnesium = 0.0528171,
  calcium = 0.0102821,
  sulphate = NULL,
  fluorine = NULL,
  method = "r_polynomial"
)

calc_all_Ks(
  temp_c = 25,
  sal = 35,
  p_bar = NULL,
  magnesium = 0.0528171,
  calcium = 0.0102821,
  sulphate = NULL,
  fluorine = NULL,
  method = "r_polynomial"
)

Arguments

k

K to be calculated

temp_c

Temperature (Celcius)

sal

Salinity

p_bar

Pressure (Bar) (optional)

magnesium

magnesium concentration in mol/kgsw. If None, modern is assumed (0.0528171). Should be the average magnesium concentration in seawater - a salinity correction is then applied to calculate the magnesium concentration in the sample.

calcium

calcium concentration in mol/kgsw. If None, modern is assumed (0.0102821). Should be the average calcium concentration in seawater - a salinity correction is then applied to calculate the magnesium concentration in the sample.

sulphate

Sulphate concentration in mol/kgsw. Calculated from salinity if not given.

fluorine

Fluorine concentration in mol/kgsw. Calculated from salinity if not given.

method

string describing method which should be either 'myami', 'myami_polynomial', or 'r_polynomial' (Default: 'r_polynomial').

ks

character vectors of Ks to be calculated e.g., c("K0", "K1") (Default: NULL, calculate all Ks)

Value

A single K at given conditions

Data.table of multiple Ks at given conditions

Data.table of all Ks at given conditions

Functions

• calc_Ks(): Wrapper to calculate multiple stoichiometric equilibrium constants at given temperature, salinity, pressure and the concentration of magnesium, calcium, sulphate, and fluorine.

• calc_all_Ks(): Wrapper to calculate all stoichiometric equilibrium constants at given temperature, salinity, pressure and the concentration of magnesium, calcium, sulphate, and fluorine.

Author(s)

Dennis Mayk