&SPECIES_PARAMS
 PSPECIES="NH3             ",
 PWETA_GAS=  9.9E-05,
 PWETB_GAS= 0.62    ,
 PRELDIFF=  1.1    ,
 PHENRY=  2.0E+14,
 PF0=  0.00000000    ,
 PDQUER=  0.00000000    ,
 PDSIGMA=  0.00000000    ,
 PWEIGHTMOLAR=  17.0000000    ,
 /