Experimental study on moving neutralization reaction boundary created withthe strong reactive electrolytes of HCl and NaOH in agarose gel

In this paper, a moving neutralization reaction boundary (MNRB) is created with the strong reactive electrolytes of HCl and NaOH in agarose gel. The m otions of the MNRB are investigated and compared with the predictions with the theory of the moving chemical reaction boundary (MCRB). The results sho w that, under appreciate experimental conditions, the experiments on the MN RB are exactly in coincidence with the predictions with the MCRB theory. Th us, the results excellently demonstrate that the MCRB theory is valid for t he MNRB formed with the strong reactive electrolytes of HCl and NaOH. Addit ionally, it is, as discussed in this paper, imperative to develop a method to obtain ionic mobility at different temperatures and ionic strengths, in order to investigate the movements of the MCRB more efficiently. (C) 2000 E lsevier Science B.V. All rights reserved.