Authors:
S. R. Sagi Inorganic Chemistry Laboratories Andhra University Waltair India

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Karri V. Ramana Inorganic Chemistry Laboratories Andhra University Waltair India

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M. S. Prasada Rao Inorganic Chemistry Laboratories Andhra University Waltair India

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Thallium(III) was precipitated with oxalic acid in the presence of 0.025M RbNO3 (or 0.0125M Rb2SO4) in 0.1M HNO3 (or 0.05M H2SO4). Chemical analysis of the solid obtained corresponds to the formula Rb[TlIII(C2O4)2]·4 H2O. Thermal studies (TG, DTG and DTA) indicated the dehydration and redox decomposition of the thallic salt to the thallous salt, and finally to a mixture of rubidium carbonate and oxides of thallium(I) and thallium(III). Infrared absorption spectra, microscopic observations and X-ray diffraction data were used to characterize the original salt, as well as the intermediates formed during the thermal decomposition of the salt. On the basis of these results, the salt may be represented as: Rb[TlIII(C2O4)2(H2O)2]·2 H2O.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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