Studies on halogen derivatives of phenylazochromotropic acid: II. Spectrophotometric microdetermination of thorium |
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| Authors: | M.M. Khater Y.M. Issa S.S. Badawy |
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| Affiliation: | Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt A.R. |
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| Abstract: | A new rapid and accurate method for the spectrophotometric microdetermination of thorium using o, p-dichloro-, p-bromo-, and p-iodophenylazochromotropic acids is given. The optimum conditions favoring the formation of the complexes are extensively investigated. The molecular structure was found to be 1:1 and 1:2 Beer's law is obeyed up to 16.24, 18.56, and 11.60 ppm of Th using the three reagents, respectively. |
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