The rate of dissolution of rotating copper discs in acidified copper(H) solutions prepared in an acetonitrile-water solvent (mole fraction acetonitrile = 0.25) was measured in the temperature range 27C-360K. The rate of dissolution was found to be proportional to the square root of the rotation spee
Dissolution kinetics of copper(II) oxide in water saturated by sulphur dioxide
✍ Scribed by Avni Çakici; Sabri Çolak; Zafer Eki̇nci̇; Samih Bayrakçeken
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 316 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0538-8066
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✦ Synopsis
The dissolution and the kinetics of dissolution of copper(I1) oxide in water saturated by sulphur dioxide has been studied. In the experiments, the particle size, the flow rate of the gas, the solid to liquid ratio, and the reaction temperature have been chosen as parameters, while the stirring rate was held constant. As a result of present experiments, it was observed that the decrease of the particle size, the solid to liquid ratio, and an increase of the reaction temperature increased the dissolution rate. It was also observed that the flow rate of sulphur dioxide in the range of its flow rate values did not affect the dissolution rate.
The reaction kinetics of copper(I1) oxide according to the heterogeneous reaction models was examined and it was found that the dissolution rate was controlled by chemical reaction. The calculated activation energy is 66.50 kJmol-l.
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