| K_HF {AquaEnv} | R Documentation | 
K\_HF
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 (Karline.Soetaert@nioz.nl).
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")