Azo-Substitute of EthoxyAcridine – A New Reagent for Extraction-Photometric Determination of Tellurium (IV)
DOI:
https://doi.org/10.24297/jac.v12i11.4830Keywords:
9-amino-4-ethoxyacridine-6-azo-diethylaniline, extraction-photometric determination of tellurium, halogen tellurate.Abstract
We studied associates of halogen telluride (Cl, Br) with 9-amine-4-ethoxyacridine-6-azo-N-N′-diethylaniline (AEADEA) by spectrophotometric method. It was established that associates are extracted well with chloroform-acetone (3:2). We determined the compositions, physical and chemical and analytical properties of complexes (εk, βKD, D, R%). Maximum light absorption for chloride complexes is found to be λmax 520 nm, but for bromide complexes - λmax 530 nm. For establishing the composition of azo- substitute ofethoxyacridine the synthesized reagents were exposed to elemental analysis, as well titanometrictitration by azo group. We developed new extraction-photometric determination methods of tellurium. Lambert-Beer law is observed in the range 0.5-15 mkgTe at 5 ml medium.
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