MECHANISMS OF ION TRANSPORT 



37 



-i06 



E 



Fig. 8. Absorption of acetic acid on charcoal 



a. Conventional plot (O— O) and log/log plot (x— x) of the same data. 



b. Double reciprocal plot of the data presented in a. 



Polar adsorption frequently involves simultaneous displacement of 

 another ion {adsorption exchange), e.g. 



K+ + R.COOH^R.COOK + H+ 



Ion exchange resins function in this way. A sulphonated polystyrene 



4 M.S.A.P. 



