Organic-Water binary Azeotropes
Organic-Water binary Azeotropes
(OP)
Hello to everybody,
I'm surfing the net (and being lost in library)looking for hints of existance of binary azeotrope between water and any of the following comps:
112Cl3C2H3 - TriChloroEthane
1122Cl4C2H2 - TetraChloroEthane
EthylBenzene
Styrene
Br3ClC - TriBromoMethane
12Br2C2H4 - DyBromoEthane
1-4DyChlorobenzene (para)
Has anybody ever heard of any azeotrope?
Thanks.
I'm surfing the net (and being lost in library)looking for hints of existance of binary azeotrope between water and any of the following comps:
112Cl3C2H3 - TriChloroEthane
1122Cl4C2H2 - TetraChloroEthane
EthylBenzene
Styrene
Br3ClC - TriBromoMethane
12Br2C2H4 - DyBromoEthane
1-4DyChlorobenzene (para)
Has anybody ever heard of any azeotrope?
Thanks.





RE: Organic-Water binary Azeotropes
RE: Organic-Water binary Azeotropes
RE: Organic-Water binary Azeotropes
RE: Organic-Water binary Azeotropes
RE: Organic-Water binary Azeotropes
Further I have (not exactly what you are looking for, but perhaps it can help you):
1,1,1-trichloroethane: Bp 88°C, 4 % water
Dichloromethane: bp 39°C, 2 % water
RE: Organic-Water binary Azeotropes
In general, solubility information (for components quite insoluble in each other) is a reasonable way to approximate dilute activity coefficients. For two immiscible components, each exerting its own vapor pressure at the system temperature, the vapor mol fraction of each will be about equal to its vapor pressure (out of the "pure" phase) divided by total pressure. The K value out of the other phase is then K=y/x = (vp/P)/molar solubility. Therefore the activity coefficient in that other phase is about 1/solubility. If the solubility is very low (<<1%), then going lower in concentration (below saturation - the pure phase has disappeared) won't significantly change the activity coefficient - it already is about at the infinite dilution value. This can be useful for approximating solute K values for calculating stripping from a solvent, when no real VLE data are available (being mostly immiscible) but solubility information is available.