Vapor solubility

Of course, a primary concern for any physical property measurement, including gas solubility, is the purity of the sample. Since impurities in ILs have been shown to affect pure component properties such as viscosity [10], one would anticipate that impurities might affect gas solubilities as well, at least to some extent. Since ILs are hygroscopic, a common impurity is water. There might also be residual impurities, such as chloride, present from the synthesis procedure. Surprisingly though, we found that even as much as 1400 ppm residual chloride in l-n-octyl-3-methylimi-dazolium hexafluorophosphate and tetrafluoroborate ([OMIM][PFg] and [OMIM] [BF4]) did not appear to have any detectable effect on water vapor solubility [1]. 

Like the inhaled gases or vapors, soluble and insoluble aerosol particles can directly exert desirable and undesirable local effects at the site of deposition and/or systemic effects after solubilization, absorption, and metabolization. 

Name CAS Formula Boilin Liquid Gas Vapor Solubility, Flamma TLV Uses... 

Wt 2,2,4-trimethylpentane/wt oil Estimated oil Pressure, In charge In vapor solubility... 

Fumes in moist air, forms hydrochloric acid vapor soluble in water with extensive decomposition. Soluble in alcohol, ether, and concentrated hydrochloric acid.3 Strong Lewis acid.1... 

A third portion of solution B is treated with acid permanganate solution. Upon boiling, there is liberated a red-brown vapor, soluble in CCI4. This vapor, Ey dissolves in dilute NaOH to give a colorless solution. 

We believe that a similar water vapor solubility enhancement of alkali vapor transport is possible in soda-lime-silica glass systems, and work is in progress to verify this. Some of the disparities between various glass vaporization studies may well result from variations in water content and, hence, alkali activities. The common explanation for water vapor enhanced alkali vapor transport over silicates has revolved around formation of volatile NaOH (77) and KOH (53) species. However, no direct test for the presence of these species has been made, and the possibility of water vapor enhancement of atomic Na and K transport exists in these systems. 

Properties Crystalline powder. Color varies from yellowish-red through rose to red. Mp 74-76C. Acted upon by atmospheric water vapor. Soluble in alcohol, chloroform, ether fats, oils, and greases insoluble in water. 

Formula weight 128.01. Brown, amorphous, hygroscopic solid, intensely blue vapor soluble in water (with hydrolysis). 

Saturated vapor solubility and pressure parameters of organic compounds from different sources often have contradictory values, which only indicate the range of values. Thus, they may only be used for training purposes. For responsible engineering computations these parameters should be more carefully substantiated. 

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