K_HF: K\_HF

In AquaEnv: Integrated Development Toolbox for Aquatic Chemical Model Generation

Description

PUBLIC function: calculates the dissociation constant of HF

Usage

K_HF(S, t, p=0, SumH2SO4=NULL, SumHF=NULL, khf="dickson", khso4="dickson")

Arguments

S	salinity in practical salinity units (i.e. no unit)
t	temperature in degrees centigrade
p	gauge pressure (total pressure minus atmospheric pressure) in bars
SumH2SO4	total sulfate concentration in mol/kg-solution (calculated from S if not supplied)
SumHF	total fluoride concentration in mol/kg-solution (calculated from S if not supplied)
khf	"dickson" or "perez": specifies the S, t, dependency to be used. Default is "dickson". (see section below for references)
khso4	S, t relation for K\_HSO4 needed for scale conversion: either "dickson" (default, Dickson1990) or "khoo" (Khoo1977)

Value

the dissociation constant of HF in mol/kg-solution on the free proton pH scale

Author(s)

Andreas F. Hofmann. Maintained by Karline Soetaert ([e-mail]).

References

khf = "dickson": Dickson1979a, Dickson1987, Roy1993b, DOE1994, Millero1995, Zeebe2001; khf = "perez": Perez1987

Examples

K_HF(35, 15)
K_HF(35, 15, 10)
plot(K_HF(35, 1:25), xlab="temperature / degC")

Example output

[1] 0.002846489
attr(,"unit")
[1] "mol/kg-soln"
attr(,"pH scale")
[1] "free"
[1] 0.002858528
attr(,"unit")
[1] "mol/kg-soln"
attr(,"pH scale")
[1] "free"

AquaEnv documentation built on May 1, 2019, 9:09 p.m.