Greetings. I have a suggestion - ammonia (AMMN). Section: Gasses. Color: like HYGN but darker. Description: "Ammonia, absorbs a lot of water". When the pressure is maximal, the evaporation point of LN2 is higher than 300 degrees Celsius - it makes the reaction very close to the real world. Then, we add HYGN there, and it will slowly turn into AMMN with this formula: 1LN2+3HYGN=1AMMN. AMMN will absorb water which will be stored in its life (from 0 to 250; the real proportion is bigger). Water can be released with heating AMMN. No saves will be broken. Very useful as absorber and as aim for making giant factories.