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The kinetics of dissolved oxygen reaction in aqueous sodium dithionite solutions
Author(s) -
Kawagoe Mikio,
Robinson Campbell W.
Publication year - 1981
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450590410
Subject(s) - sodium dithionite , chemistry , dithionite , aqueous solution , inorganic chemistry , sodium hydroxide , kinetics , arrhenius equation , sodium , oxygen , order of reaction , chemical kinetics , activation energy , reaction rate constant , organic chemistry , quantum mechanics , enzyme , physics
The kinetics of the reaction between dissolved oxygen and sodium dithionite in alkaline aqueous solution was investigated in a stirred cell. For dithionite concentrations below 0.08 kmol/m 3 and sodium hydroxide concentrations from 0.044 to 0.27 kmol/m 3 , the results show the reaction to be first order in dithionite and zero order in oxygen. The Arrhenius activation energy was determined to be 76.2 MJ/kmol in the temperature range 15 to 34°C. Addition of other electrolytes (sodium sulphate or potassium chloride) had no effect on the kinetics.