# Moist Chlorine & Hydrogen Psychrometric or Mollier Chart

In our electrolysis of brine, $\ce{Cl2}$ and $\ce{H2}$ are produced as gaseous products along with aqueous $\ce{NaOH}$. In this scenario I require what amount of maximum moisture can $\ce{Cl2}$ and $\ce{H2}$ hold up at specific temperature & pressure (precisely 85 celsius & 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,

To dehumidify these gases effectively, if this is really required, consider bubbling them through layer of concentrated $\ce{H2SO4}$, it is a quite common and easy way to dehumidify gases.
• @nightcrawler water vapor pressures: en.wikipedia.org/wiki/Vapour_pressure_of_water | $pV=\nu RT$ allows to move from the partial pressure to moles of water per liter, and the rest of absolute pressure is the partial pressure chlorine, from which you can get moles of chlorine per liter. From here you can get equilibrium percentage of water vapors in chlorine at any given temperature and total pressure. Seriously, read about partial pressures and ideal gas model, they appear in chemistry regularly. Aug 30 '14 at 7:44