Effect of relative humidity on the evaporation path from a phenethyl alcohol emulsion.
The evaporation path for emulsions of phenethyl alcohol stabilized by a non-ionic surfactant, Laureth 4, a commercial ethoxy adduct, approximately C(12)(EO)(4), was estimated by calculations using the phase diagram. The results for emulsions with an O/W ratio equal to or greater than 1/3 showed the relative humidity only in excess of 90% to have a significant effect on the evaporation path. In fact the path was not significantly modified for relative humidities from 0% to 90%, but in the range 90-100% the modification of the evaporation path was most pronounced; not only altering the path, but causing entirely different phases to appear in the emulsion. On the other hand, for emulsions with lower O/W ratios these effects were substantial for relative humidities down to the level of 40%.
Friberg
Stig E
SE
Chemistry Department, Yangzhou University, Jiangsu 225002, PR China. stic30kan@gmail.com
D004655:Emulsions / Q000737:chemistry*; D005740:Gases; D006813:Humidity; D044367:Phase Transition; D010626:Phenylethyl Alcohol / Q000737:chemistry*
D004655:Emulsions; D005740:Gases; D010626:Phenylethyl Alcohol