| Some Radio Tracer Studies of Thorium OxideSolution
Interface |
v. N. SINGH, s. P. MISHRA AND H. N. SRIVASTAVA
Pages : 134-138
DOI : 10.1080/0371750X.1981.10822535 |
| Abstract |
| Thorium oxide is one of the most important refractory materials used
in ceramic industries. In the present work, the surface properties of
this oxide have been studied by allowing the adsorption of bromide
ions on its surface at various temperatures (5° to 45°C) and pH (3.2
to 11.5) of KBr solutions using Br-82 as tracer. The influence of
neutrons and y-rays irradiations of this oxide by 300 me (Ra-Be)
source for 12, 24, 36 and 48 hours on the adsorption of bromide ions
has also been studied. The kinetics of adsorption in all the above
cases were found to be of first order. It has been observed that the
change in temperature, pH and irradiations with neutron and y-rays
of the oxide have remarkable effect on the surface behaviour of the
adsorbent. The energy of activation of the process has been determined
to understand the mechanism of adherence of ions on the
surface of thorium oxide. Attempts have also been made to explain
the results obtained in the present investigation in the light of some
adsorptive properties of thoria in electrolyte solution. |
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