Chlorine & Hydrogen Psychrometric or Mollier Chart

In our electrolysis of brine, Cl2 & H2 are produced as gaseous products along with aqueous NaOH. In this scenario I require what amount of maximum moisture can Cl2 or H2 hold up at specific temperature & pressure (precisely 85celsius & 1.2bar absolute). Two coolers (shell/tube exchanger with chilled water on shell side) are planned to dehumidify these two gases.
I have searched hard but without proper psychrometric data am unable to even estimate preliminary values. Link to data or other alternatives are highly welcome.
regards,