STUDIES ON THE STATE AND THE SOLVENT EXTRACTION PROPERTY OF Ru(Ⅳ) IN HYDROCHLORIC ACID SOLUTION

In this paper both the stability of RuCl6 2- ion in HC1 media and the solvent extraction mechanism of RuCl6 2- extracted with >5% trinonylamine ( TNA ) -kerosine from an aqueous phase of HC1 > 3M are studied.It is found that the composition of the extracted adduct is (R3NH)2RuCl8 by the usual slope method.The synergistic extraction effects of RuCl82-are observed in thse systems: with(TNA + N1923) , CTNA+DNA), CTNA+ALQ)and (TNA + MIBK) . The compositionof the adduct from synergistic extraction of (TNA+DNA) in 3M HC1 is postulated as (R3N H)(R2NH2)3 Ru2Cl12 by the method of isomolar series. The synergistic extraction coefficient of the synergistic reaction is found to be S=1.4.