All these exaples lead to an infinite value:

HapropsSI("B",232.93,"W",7.926_10^-7,"P",101325)
HapropsSI("R",0.01,"W",7.926_10^-7,"P",101325)
HapropsSI("H",-40221,"W",7.926*10^-7,"P",101325)

HapropsSI("B",233.11,"W",6.342_10^-5,"P",101325)
HapropsSI("R",0.8,"W",6.342_10^-5,"P",101325)
HapropsSI("H",-40069,"W",6.342*10^-5,"P",101325)

HapropsSI("B",251.62,"W",6.366_10^-6,"P",101325)
HapropsSI("R",0.01,"W",6.366_10^-6,"P",101325)
HapropsSI("H",-20096,"W",6.366*10^-6,"P",101325)

HapropsSI("B",271.99,"W",3.028_10^-3,"P",101325)
HapropsSI("R",0.8,"W",3.028_10^-3,"P",101325)
HapropsSI("H",7569,"W",3.028*10^-3,"P",101325)
HapropsSI("B",271.99,"D",270.47,"P",101325)