90 



KINETICS OF CHEMILUMINESCENCE 



pressure can in turn be expressed in milliliters at S.T.P. of oxygen 

 absorbed. There was a small amount of light even before the oxygen 

 was added. This varied from one experiment to another, depending 

 on the thoroughness of the treatment to eliminate the dissolved 

 oxygen. This was taken to mean that a small quantity of oxygen was 

 still in the solution. The linearity of the plot of oxygen absorbed versus 



-0.40 



-0.20 



3.50 



3.30 



1/Txl03 



Fig. 9. 



intensity permitted the extrapolation to zero concentration of oxygen. 

 These results are given in Fig. 8. 



Tests were made at different temperatures. The plots of intensity 

 versus milliliters of O2 absorbed in Fig. 8 make it possible to read 

 intensities for any given concentration of oxygen as a function of 

 temperature. Equation 12 permits the conversion of intensities into 

 rates. Figure 9 gives the rates for solutions that have absorbed 4 ml 



