
Originally Posted by
Bipolar
yes, so the system is this:
methane-EG-water. however, methane (gas) disolves just too much in EG. now i want something better than methane (has to be a gas).
I have looked at the halogenated versions of methane, CH3F and CH2F2, there is just not enough data on a system like this: CH3F-EG-water.
there is one document on C2H2F4 (R-134a)-TEG-Water, this states that fluorine disolves in TEG ( I need EG) and also compared to methane-TEG-water data i can conclude that the halogenated ethane disolves better in TEG than methane. this has two reasons 1) the molecule ethane looks more like TEG than methane, and 2) a polar compound with affinity for water will also have affinity for TEG (so this will have similar effect in EG).
This last conclusion makes me confused, I need a compound with affinity for water (so probably polar) but this compound will also have affinity for EG... so at the moment anny polar compound will be not suitable? it is quit headbreaking