K N N Kurup
Articles written in Proceedings – Section A
Volume 47 Issue 6 June 1958 pp 373-378
The system thorium oxalate-ammonium oxalate-water has been investigated by physico-chemical methods. A new procedure is adopted in preparing the solution for these studies by the mono-variation method. Data have been presented to prove the existence of two complexes in solution from measurements of electrical resistance, pH and relative viscosity.
Volume 48 Issue 2 August 1958 pp 76-83
Optimum conditions for the removal of phosphatic content in monazite sand by sintering with sodium carbonate are described in the previous papers in the series.† Results of investigation by D.T.A. and X-ray diffraction of the solid-solid reaction between monazite sand and sodium carbonate are now given. The D.T.A. curve shows that it is a slow exothermic reaction. X-ray diffraction patterns, besides confirming the constituents in the sintered product identified chemically, show the presence of a new phase.