Studies were carried out on decomposition of hydrogen peroxide by ferrous and ferric ions adsorbed on cellulosic materials (SP, SCP), scission of the cellulose chain and formation of grafts by graft copolymerization. As a result, it was found that the activity of ferrous ion is always higher than th
Initiation process in the system Fe3+ + H2O2
β Scribed by Yu. N. Kozlov; A. D. Nadezhdin; A. P. Pourmal
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- English
- Weight
- 457 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0538-8066
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β¦ Synopsis
An inhibitor method for measuring the initiation rate is proposed for the system Fe3+ + H202.
The number of chains terminated by one C(NO& molecule was estimated in specific photochemical experiments and found to be unity. The initiation appeared to involve two processes. The first is proportional to the first power of ferric ion concentration, and the second to the second power. The rate constants and activation energies of these processes are determined. Allowance for the second initiation process permitted qualitative and quantitative description of various reported data on H202 decomposition rates over a wide range of Fe3+, H202, and H+ concentrations. C(N02)4 was used as inhibitor.
π SIMILAR VOLUMES
Phase equilibria in the Li 2 O-Fe 2 O 3 -TiO 2 system were studied at 900 and 1000Β°C using the quenching method. Two new ternary solid solutions, based on the pseudobrookite and ramsdellite structure types, were identified and structurally characterised using Rietveld refinements of powder X-ray dat
3 β«Ψβ¬ 0.384:0.464:0.152 (mole ratio) on the line ''InFeO 3 ''-''In 2 Ti 2 O 7 .'' The crystal structures of In 3 Ti 2 FeO 10 are pyrochlore related with a m β«Ψβ¬ 5.9171 (5) A s , b m β«Ψβ¬ 3.3696 (3) A s , c m β«Ψβ¬ 6.3885 (6) A s , and β«Ψβ¬ 108.02 (1)Β°in a monoclinic crystal system at 1100Β°C, and a 0 β«Ψβ¬
Polyaniline is prepared by chemical polymerization of aniline in an acidic solution using H 2 O 2 as an oxidant and ferrous chloride as a catalyst. A wide variety of synthesis parameters are studied, such as the amount of the catalyst, reaction temperature, reaction time, initial molar ratio of oxid