Solubility diagrams of the potassium iodide-water-N,N-dimethylformamide and iodine-iodide-water-N,N-dimethylformamide systems at 25°C |
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| Authors: | T M Varlamova G V Gerasimova S P Mushtakova |
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| Institution: | (1) Chernyshevsky State University, ul. Dvadtsatiletiya VLKSM 112a, Saratov, 410071, Russia;(2) Saratov Military Institute of Radiation, Chemical, and Biological Shielding, Saratov, Russia |
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| Abstract: | The solubility diagrams of the potassium iodide-water-N,N-dimethylformamide (DMFA) and iodine-iodide-water-N,N-dimethylformamide systems were studied at 25°C by the method of sections. The systems are characterized by three-phase equilibria of the peritonic and eutonic types, respectively. Potassium iodide in the I2-KI-/H2O-DMFA (95: 5 wt %)/ system was found to salt in crystalline iodine. The selected composition of the H2O-DMFA mixed solvent possessed a higher iodine-solving ability compared with pure mixture components. |
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