𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Activation parameters of ferryl ion reactions in aqueous acid solutions

✍ Scribed by Frank Jacobsen; Jerzy Holcman; Knud Sehested

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
152 KB
Volume
29
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

double distilled from Vycor was obtained from G. Frederick Smith Co. The content of iron(III) in iron(II) solutions was controlled spectrophotometrically and never exceeded 1.5%; such low concentration neither influence accuracy of our results nor the quality of our photometric measurements.

O 3 Preparation and Measurements

Stock solution of ozone was prepared by bubbling the effluent from an Erwin Sander (V) ozonator through an aqueous HClO 4 solution. Ozone concentrations of (2.5Ϫ3.0) ϫ 10 Ϫ4 M were achieved without any special procedure. The ozone concentration was determined spectrophotometrically at its maximum absorption wavelength, max ϭ 260 nm, using an extinction coefficient

Apparatus

For the kinetic studies a Hi-Tech SF 51 Stopped-flow spectrophotometer (SFS) with UV and VIS lamps was used. This instrument has a mixing time of about 1 -2 ms, which enables us to measure rate constants in the range of 0.01 -700 s Ϫ1 . Both the ozone and

📜 SIMILAR VOLUMES

Reactions of 1,ω-bis(2-bromopyridinium)a
Reactions of 1,ω-bis(2-bromopyridinium)alkanes with hydroxide ion in aqueous solutions
✍ Carmen Fernandez; Vicente G. Toscano; Hernan Chaimovich; Mario J. Politi; Noboru 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 161 KB 👁 1 views

The reaction of OH À ion with 1,o-bis(2-bromopyridinium)alkanes, where the reaction centers are separated by a varying number of methylene groups, was investigated to model the increased velocity of OH À attack on premicellar aggregated N-alkylpyridinium compounds. 1,o-Bis(2-bromopyridinium)alkanes

Kinetic evidence for the reaction of O•−
Kinetic evidence for the reaction of O•− radical ions and peroxodisulfate in alkaline aqueous solutions
✍ Daniel O. Mártire; Mónica C. Gonzalez 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB 👁 2 views

Photolysis of in strong alkaline solutions in the presence of ϭ S O (pH Ͼ 13) 2 8 molecular oxygen yields ozonide radical ions, These radicals show a complex decay rate Ϫ и O . 3 sensitive to the peroxodisulfate concentration. A reaction mechanism, which includes the reaction of Oи Ϫ and with a rate