In aq. solns. with ionic strength 0.1M (NaClO4) contg. Cr(III) and Methylthymol Blue (H6L) at 25°, the equil. consts. (K) corresponding to Cr3+ + H4L2- = CrH3L + H+, 2Cr3+ + H4L2- = Cr2H3L3+ + H+, Cr3+ + H3L3- = CrH3L, and 2Cr3+ + H3L3- = Cr2H3L3+ are log K = 0.81, 5.14, 3.9, and 8.2, resp. The acid dissocn. consts. corresponding to H6L = H5L- + H+, H5L- = H4L2- + H+, H4L2- = H3L3- + H+, H3L3- = H2L4- + H+, H2L4- = HL5- + H+, and HL5- = L6- + H+ are pKa = -1.9, +1.9, +3.1, +7.02, +10.6, +12.5, resp.

Reaction of chromium(III) with Methylthymol Blue in aqueous solution / Chiacchierini, E.; Petrone, V.; Magri', Antonio; Balestrieri, F.. - In: GAZZETTA CHIMICA ITALIANA. - ISSN 0016-5603. - STAMPA. - 102:10(1972), pp. 911-922.

Reaction of chromium(III) with Methylthymol Blue in aqueous solution

MAGRI', Antonio;
1972

Abstract

In aq. solns. with ionic strength 0.1M (NaClO4) contg. Cr(III) and Methylthymol Blue (H6L) at 25°, the equil. consts. (K) corresponding to Cr3+ + H4L2- = CrH3L + H+, 2Cr3+ + H4L2- = Cr2H3L3+ + H+, Cr3+ + H3L3- = CrH3L, and 2Cr3+ + H3L3- = Cr2H3L3+ are log K = 0.81, 5.14, 3.9, and 8.2, resp. The acid dissocn. consts. corresponding to H6L = H5L- + H+, H5L- = H4L2- + H+, H4L2- = H3L3- + H+, H3L3- = H2L4- + H+, H2L4- = HL5- + H+, and HL5- = L6- + H+ are pKa = -1.9, +1.9, +3.1, +7.02, +10.6, +12.5, resp.
1972
Chromium(III); Methylthymol Blue; complexes
01 Pubblicazione su rivista::01a Articolo in rivista
Reaction of chromium(III) with Methylthymol Blue in aqueous solution / Chiacchierini, E.; Petrone, V.; Magri', Antonio; Balestrieri, F.. - In: GAZZETTA CHIMICA ITALIANA. - ISSN 0016-5603. - STAMPA. - 102:10(1972), pp. 911-922.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/470462
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