Examples of Certain Other Gases

Solubility data for these gases are sparse. The positions of the R-lines for temperatures in the range 0-25 C would require a base scale corresponding to JVa from 0 to 1 to plot them on a common diagram. In Fig. 140 I have given representative plots and indicate the positions of certain observed Na values on the horizontal at 760 mm Hg. Even when the vapor pressure data are not available, the 

The possible occurrence of these gases, which may be in small amounts, in chemical, technological, and biotechnological systems and the concern over pollution justify an indication of the positions of the R-lines in the spectrum. Apart from nonreversible interaction with water, in every example the Na value for water is less than that for any other examined liquid and is far removed from the respective R-line the absorption coefficient for CF4 (bp gives Ncf4 = 

R-lines for SiH4 (bp -112°C), PF3 (bp -lOrC), and BF3 (bp -100°C) would be drawn at the extreme left of the diagram on the scale used, whereas those for C2N2 (bp -21.1°C) and SbH3 (bp —17 C) would require a smaller scale and would appear near the R-line for dimethyl ether at 20 C that for H2Te would require a still fmrther reduction in scale and would appear just on the left of the R-line for n-butane for 20 C. 

A plot of cm BF3(STP) per g n-C5Hi2 vs total pressure was nonlinear and was taken to represent a positive deviation from Henry s law. The JVbfj plot is shown in Fig. 141 the xbfj plot is clearly distinguishable. The curvature of the line shows its trend to reach the R-line at much higher pressures. The Nbf value for benzene (0.00226 at 47°C, 1 atm) and for toluene (0.00254 at 49°C, 1 atm ) are registered in the bottom left corner of the diagram corresponding values are 0.00247 (22°C) and 0.00279 (27°C). 

It must again be emphasized that these R-lines represent a property of each gas, exclusive of the properties of any liquid S used to absorb the gas. 

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