Hydrogen Peroxide Photolysis in Acidic Aqueous Solutions Containing Chloride Ions. II. Quantum Yield of HO•(Aq) Radicals

2003 ◽  
Vol 107 (9) ◽  
pp. 1325-1332 ◽  
Author(s):  
Xiao-Ying Yu ◽  
John R. Barker
Keyword(s):  
Hydrogen Peroxide ◽  
Quantum Yield ◽  
Aqueous Solutions ◽  
Chloride Ions

Association of benflurone in aqueous solutions studied by measuring the activity of chloride ions

1986 ◽  
Vol 51 (11) ◽  
pp. 2437-2443
Author(s):  
František Kopecký ◽  
Mária Vojteková ◽  
Milan Pešák
Keyword(s):  
Aqueous Solutions ◽  
Chloride Ions ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Measured Range

The conventional activity of chloride ions was measured by an ion-selective electrode at 25 °C in aqueous solutions of benflurone, i.e. 5-(2-(N,N-dimethylamino)ethoxy)-7-oxo-7H-benzo(c)fluorene hydrochloride, without or with additions of KCl. These results suggest a gradual association of benflurone; the formation of a hetero-associate, (BH+)2Cl-, followed by higher associates was evaluated in the measured range up to 0.1 mol l-1.

Decomposition of hydrogen peroxide on nickel-silver two-component catalyst

1984 ◽  
Vol 49 (10) ◽  
pp. 2222-2230 ◽  
Author(s):  
Viliam Múčka ◽  
Rostislav Silber
Keyword(s):  
Hydrogen Peroxide ◽  
Chemical Properties ◽  
Silver Ions ◽  
Surface Concentration ◽  
Chloride Ions ◽  
Nickel Silver ◽  
Silver Catalysts ◽  
Physico Chemical ◽  
Low Degree ◽  
Defective Crystal

The catalytic and physico-chemical properties of low-temperature nickel-silver catalysts with nickel oxide concentrations up to 43.8% (m/m) are examined via decomposition of hydrogen peroxide in aqueous solution. The mixed catalysts prepared at 250°C are composed of partly decomposed silver carbonate or oxide and nickel carbonate or hydroxide decomposed to a low degree only and exhibiting a very defective crystal structure. The activity of these catalysts is determined by the surface concentration of silver ions, which is affected by the nickel component present. The latter also contributes to the thermal stability of the catalytic centres of the silver component, viz. the Ag+ ions. The concentration of these ions varies with the temperature of the catalyst treatment, the activity varies qualitatively in the same manner, and the system approaches the Ag-NiO composition. The catalytic centres are very susceptible to poisoning by chloride ions. A previous exposition of the catalyst to a gamma dose of 10 kGy from a 60Co source has no measurable effect on the physico-chemical properties of the system.

Sorption of Cadmium and Lead by Chelating Ion Exchangers Ostsorb OXIN, Ostsorb DETA, and Ostsorb DTTA

1994 ◽  
Vol 59 (6) ◽  
pp. 1311-1318 ◽  
Author(s):  
Ladislav Svoboda ◽  
Petr Vořechovský
Keyword(s):  
Ionic Strength ◽  
Aqueous Solutions ◽  
Sodium Perchlorate ◽  
Exchange Capacity ◽  
Chloride Ions ◽  
Point Of View ◽  
Alkaline Media ◽  
Ion Exchangers ◽  
Acidic Media ◽  
Cadmium And Lead

The properties of cellulose chelating ion exchangers Ostsorb have been studied in the sorption of cadmium and lead from aqueous solutions. The Cd(II) and Pb(II) ions are trapped by the Ostsorb OXIN and Ostsorb DETA ion exchangers most effectively in neutral and alkaline media but at these conditions formation of stable hydrolytic products of both metals competes with the exchange equilibria. From this point of view, Ostsorb DTTA appears to be a more suitable sorbent since it traps the Pb(II) and Cd(II) ions in acidic media already. Chloride ions interfere with the sorption of the two metals by Ostsorb DTTA whereas the ionic strength adjusted by the addition of sodium perchlorate does not affect the exchange capacity of this ion exchanger.

Radiation-induced oxidation of 2-propanol by hydrogen peroxide in aqueous solutions

1970 ◽  
Vol 48 (18) ◽  
pp. 2948-2948
Author(s):  
C. E. Burchill ◽  
I. S. Ginns
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Radiation Induced

not available

Oxidation-reduction chemistry of hydrogen peroxide in aprotic and aqueous solutions

1979 ◽  
Vol 18 (7) ◽  
pp. 1971-1973 ◽  
Author(s):  
Mark M. Morrison ◽  
Julian L Roberts ◽  
Donald T. Sawyer
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Oxidation Reduction

Interfacial Behavior of Perchlorate versus Chloride Ions in Aqueous Solutions

2009 ◽  
Vol 113 (48) ◽  
pp. 15843-15850 ◽  
Author(s):  
Marcel D. Baer ◽  
I-Feng William Kuo ◽  
Hendrik Bluhm ◽  
Sutapa Ghosal
Keyword(s):  
Aqueous Solutions ◽  
Chloride Ions ◽  
Interfacial Behavior

Hydrogen Peroxide Yields in X-Irradiated Aqueous Solutions A Sensitive Method Based on Hydrazide Chemiluminescence

1955 ◽  
Vol 3 (4) ◽  
pp. 379 ◽  
Author(s):  
W. V. Mayneord ◽  
W. Anderson ◽  
H. D. Evans ◽  
D. Rosen
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Sensitive Method
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