•d 



Fig. 33. 



Graph showing $ regenerated, daily C$3, 

 time to regenerate 7.5^ and f> of normal 

 CO3 produced in increasing concentrations 

 of HC1. 



Ordinate = cc.O.OlN HC1 in 300 cc, 

 Abscissa for $ regen. = f> removed, 

 for CO3 daily * cc.O.OlN H3CO3. 

 for 7,.5# regen. = time in days. 

 For fo normal CO2 = % CO2 in neutral water 

 of tables 31 and 23. 



MMB 



Bm 

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