PHYSI'CO-CHEMICAL STUDIES ON TIN ANTIMONATE

Abstract

This work has been done in an attempt to prepare inorganic ion exchangers, that can be of help in understanding and improving the ion exchange process. And knowing the electrical conductivities process, which are characterized by tin (IV) antimonate among the solid inorganic ion exchangers. Chapter I, introduction which includes the advantages of the

inorganic ion exchangers over the organic resins, and a literature survey covering, almost, the last three decades related to the propsed subject. Chapter II,the experimental work,which includes method of the

preparation of tin (IV) antimonate materials. The experimental includes the chemicals used, the equipments used in detennination and analysis measurements. /11 Chapter Ill , results and discussion of characterization

of tin (IV) antimonate by using the XRD, DTA-TGA, IR

spectrophotometer and thennal analysis.

The results showed that tin (IV) antimonate has amorphous structure, water content could be detennined with calcination till 800°C, tin (IV) antimonate showed thennal stability up to 650 °C.

The effect of hydrogen ion concentration was studied. It was found that each mole of h ydorgen ion in tin (IV) antimon ate compound is replaced by only one mole ofNa+, K+ and Li+, but in case of Co2+ each two mole of hydrogen ion is replaced by one mole of Co2+ ion. The effect of metal ion concentration on the distribution coefficient found that , there is a steady decrease in the distribution coefficients (Kd) values with the increase in the metal ion concentration. AlsoJthe effect