Kinetics of oxygen absorption in aqueous sodium dithionite solutions

2007 ◽  
Vol 56 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Abdulla A. Shaikh ◽  
S. M. Javaid Zaidi
Keyword(s):  
Sodium Dithionite ◽  
Oxygen Absorption ◽  
Aqueous Sodium ◽  
Kinetics Of

Oxygen Absorption Kinetics of Sheets and Films Containing a Commercial Iron-based Oxygen Scavenger

2009 ◽  
Vol 15 (2) ◽  
pp. 159-168 ◽  
Author(s):  
M.J. Galotto ◽  
S.A. Anfossi ◽  
A. Guarda
Keyword(s):  
Relative Humidity ◽  
Kinetic Parameters ◽  
Oxygen Absorption ◽  
Absorption Kinetics ◽  
Oxygen Scavenger ◽  
Arrhenius Behavior ◽  
Oxygen Scavengers ◽  
Iron Based ◽  
Empirical Growth ◽  
Kinetics Of

Absorption kinetics of three different forms of the same iron-based oxygen scavenger were studied. Oxygen scavengers were used as pellet, sheet, and film materials. Two scavenger concentrations were used for sheet and film forms. Scavenger samples were analyzed at 75 or 100% relative humidities and stored at 5, 15, and 25°C. Oxygen concentration in the headspace was measured as a function of time. Absorption kinetics was best described by the Chapman-Richards empirical growth model rather than by a first-order reaction. Arrhenius behavior was observed for variations in the final absorption rate with temperature. Absorption capacities, final absorption rates, and activation energies were evaluated and discussed. Scavenger concentration, relative humidity, and temperature effects on kinetic parameters were studied for each experimental condition. Temperature was the most important factor that affected kinetic parameters. At the relative humidity levels studied, any important effect on kinetic parameters was not observed, except on absorption capacities.

Kinetics of anthraquinone reduction with sodium dithionite in alkaline medium

AIChE Journal ◽  
1988 ◽  
Vol 34 (5) ◽  
pp. 865-869 ◽  
Author(s):  
J. C. Burillo ◽  
Francisco Rodríguez ◽  
L. F. Adrados ◽  
J. F. Tijero
Keyword(s):  
Alkaline Medium ◽  
Sodium Dithionite ◽  
Kinetics Of

Kinetics of oxidation of sodium dithionite by flow thermal method

AIChE Journal ◽  
1978 ◽  
Vol 24 (2) ◽  
pp. 232-237 ◽  
Author(s):  
D. K. Singh ◽  
R. N. Sharma ◽  
R. D. Srivastava
Keyword(s):  
Sodium Dithionite ◽  
Thermal Method ◽  
Kinetics Of Oxidation ◽  
Kinetics Of

Effect of the temperature on the kinetics of the chemisorption of atmospheric oxygen by a sodium dithionite solution

2006 ◽  
Vol 80 (9) ◽  
pp. 1481-1483
Author(s):  
S. V. Aleeva ◽  
G. V. Chistyakova ◽  
S. A. Koksharov ◽  
Yu. V. Polenov
Keyword(s):  
Atmospheric Oxygen ◽  
Sodium Dithionite ◽  
Kinetics Of
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