Spectrophotometric study of the molybdenum(VI) chelate of flavon-3-ol-2'-sulfonic acid in strong acid solutions |
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| Authors: | Katsumi Yamamoto Junko Hara Kousaburo Ohashi |
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| Affiliation: | Department of Chemisrty, Faculty of Science, Ibaraki University, Mito 310 Japan |
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| Abstract: | Molybdenum(VI) reacts with flavon-3-ol-2'-sulfonic acid (HL) in strong acid solutions to form a 1:1 chelate which has a stability constant (log K) of 3.04 at 25°C and ionic strength (l) of 1.0. Beer's law is obeyed in the range 0.69–8.20μg Mo ml-1 in 0.3 M perchloric acid; the molar absorptivity at 370 nm is 1.4 × 104 l mol-1 cm-1. |
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