The hydration parameter and the excess acidity functions in H₂SO₄–H₂O and HClO₄–H₂O media

Abstract

PIETRO GIUSEPPE TRAVERSO. Can. J. Chem. 62, 153 ( 1984). Excess acidities, X, for aqueous H'SO, and HCIO, arc derived under conditions of fixed pKBbI+ and 111:' : in both media. and of fixed m* only, and compared among themselves and with newly derived and previous scales obtained without constraint, or with fixed pK,,+ valucs. Analysis shows few or no real diffcrcnces among these scalcs. which means that the equation log I + log C,,+ = pK,H+ + nl:':X applies without the necessity of involving a "second-order" ni*:~"X'terni, at least for thcsc media.PIETRO GIUSEPPE TRAVERSO. Can. J . Chcm. 62, 153 (1984). On a derive les aciditis en exctts, X. dcs milieux aqucux dc HISO, ct de HClO, pour dcs conditions ou le PKRII. ct le III": sont fixes dans les deux milieux ainsi que lorsqu'uniqucnicnt m* est fixit; on compare ccs valeurs cntre clles, avcc Ics nouvellcs itchelles ainsi qu'avec les ancicnnes Cchclles obtenucs sans contraintc ou avcc dcs valcurs fixits de pK,,,. . L'analyse ne rkvhle que peu ou pas de diffkrence riellc parmi ccs Cchcllcs. ce qui signifie quc I'itquation log I + log CI.,5 = pK,,,t. + tn:%X s'applique sans la nCcessitC dc fairc intcrvcnir un terme du "second dcgrit" I~"""x', au moins pour ccs milicux.ITraduit par Ic journal]

Viscometric Behavior of Concentrted Perchloric Acid

“…The structural modification of water has been investigated conductometrically for perchlorates in methanol solution 12 . In aqueous solution the hydration studies have been reported 13,14 . In the present study the viscometric studies of aqueous concentrated perchloric acid have been undertaken in order to obtain interaction parameters.…”