Coulometric titrations secondary technique

As already mentioned in the beginning of this text (almost) every experimental technique described here has its technological counterpart. In the case of Coulometric Titration, this is the intercalation process in secondary electrodes treated in Section II.3.ii. The technological counterpart of what remains to be discussed in the next section, are the emf sensors. Since we dealt with general aspects on equilibrium cells quite extensively already in the application part (Section II.3.i), we will restrict ourselves to only very few remarks. 

Owing to metal chlorides titration by the coulometric method, and carboxylic acid titration by the potentiometric method, it is possible to follow the metal soaps consumption during thermomechanical heat treatments. This new technique provides a better understanding of the stabilization mechanisms of PVC with the calciumr-zinc system, and offers a better explanation of synergistic effects between metal soaps and secondary stabilizers such as epoxidized soya-bean oil, a-phenylindole, and butanediol-p-aminocroto-nate. The influence of these last stabilizers on zinc chloride formation enables us to classify them into short- and longterm stabilizers. 

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