Extraction and Estimation of Ruthenium (III) from Hydrochloric Acid medium by Cyanex 302

Bhanu Raman; S. S. Salunke; Bright O Philip

Volume : IV, Issue : V, May - 2015

Extraction and Estimation of Ruthenium (III) from Hydrochloric Acid medium by Cyanex 302

Bhanu Raman, S. S. Salunke, Bright O Philip

Abstract :

The paper embodies extraction behavior of Ru (III) from hydrochloric media in presence of SnCl2 in a carbon tetrachloride solution of Cyanex 302.Various parameters such as acid concentration, reagent concentration; SnCl2 concentration, shaking time, effect of diluents and effect of foreign ions were studied. Quantitative extraction of Ru (III) in 1.0 M HCl and 0.6 ml of 1M SnCl2 stannous chloride was possible with 0.06 M Cyanex 302 after 75 seconds of shaking .The light golden yellow coloured Ru– Cyanex 302complex exhibits maximum absorption 300 nm where extraction of reagent was found to be negligible. The complex is stable more than 48 hrs. The probable composition of the species has been deduced from the extraction data. Beer–Lambert law is obeyed in the concentration range 5�g – 45�g with Sandell�s sensitivity of 1.240 x 10–3 �g/mL/cm2 and molar absorptivity of 91,904 x 104 mole–1cm–1dm3. A study of effect of diverse ions on the extraction showed that several metals ions like Ca+2, Ti+4,Mg+2, K+, Na+, Ce+4, Al+3, Mn+2 do not interfere during the extraction and estimation of ruthenium. The data has been successfully employed for the separation of binary mixtures containing the non interfering metal ions. The optimized conditions of extraction has been successfully utilized to recover metal from real samples.