Some studies on thallium oxalates: XIV. Indium(III) bis-oxalatodiaquathallate(III) hexahydrate
Thallium(III) was precipitated with oxalic acid in the presence of 0.01 M In(NO 3) 3 in 0.125 M HNO 3. Chemical analysis of the solid obtained corresponds to the formula In[Tl(C 2O 4) 2] 3·12H 2O. Thermal studies (TG, DTG and DTA) indicated the dehydration and redox decomposition of the thallic salt...
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Published in | Thermochimica acta Vol. 381; no. 1; pp. 31 - 36 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
03.01.2002
Elsevier Science |
Subjects | |
Online Access | Get full text |
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Summary: | Thallium(III) was precipitated with oxalic acid in the presence of 0.01
M In(NO
3)
3 in 0.125
M HNO
3. Chemical analysis of the solid obtained corresponds to the formula In[Tl(C
2O
4)
2]
3·12H
2O. 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 indium(III) and thallium(III) oxides. The latter, however, volatilised leaving indium(III) oxide as residue. Infrared absorption spectra and X-ray diffraction data were used to characterise the original salt, as well as the intermediate formed during its thermal decomposition. On the basis of these results, the compound may be represented as In
3+[Tl(C
2O
4)
2(H
2O)
2]
3·6H
2O. |
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ISSN: | 0040-6031 1872-762X |
DOI: | 10.1016/S0040-6031(01)00641-4 |