• K V Nayak

Articles written in Proceedings – Section A

• On the solubility of rare earth hydroxides in aqueous sodium potassium tartrate

The behaviour of rare earth hydroxides towards variously concentrated solutions of sodium potassium tartrates is studied. Their solubility varies in the order Ceiii&gt;La; that of erbium, yttrium and ceric is, however, found to be almost negligible. This suggests a fairly rapid method of separation of rare earths (a) yttrium and erbium from (b) lanthanum and cerous salts; and the fractionation of (b).

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