β Scribed by H.C. Gaur; H.L. Jindal; R.S. Sethi
No coin nor oath required. For personal study only.
The voltammetric behaviour of lead chloride in molten magnesium chloride-potassiumchloride (32.5 : 67.5 mole-%) at 475Β°C has been examined. Current/voltage curves were recorded with a manual arrangement using tungsten and platinum micro-electrodes as polarizable cathodes and the O-01 molal Pt(II)/Pt system in the melt as reference. For 6-79 to 52.34 mmolal solutions, well defined limiting waves were obtained, the wave-height being proportional to the metal-ion concentration in solution. The wave-s on a tungsten micro-electrode obeyed the Kolthoff-Lingane equation while those on a platinum micro-electrode obeyed the I-Ieyrovsk+IlkoviE equation. Zusammenfassung-Das voltametrische Verhalten von Bleichlorid im geschmolzenen Gemisch von Magnesiumchlorid und Kaliumchlorid (32,5: 67,5 MoI%) wurde bei 475Β°C untersucht. An Wolfram-und Platin-mikroelektroden wurden kathodische Strom/Spannungskurven aufgenommen. Als Referenzelektrode diente ein ca. 0,OI molales Pt(II)/Pt-System in der Schmelze. Fiir 6, 79 bis 52,34 mmolale Lasungen erhielt man gut definierte Grenzstrdme, die Hahe der Stufe war dabei proportional zur Konzentration der gel&ten Metallionen. Die Kurven an der Wolframelektrode gehorchten der Gleichung von Kolthoff-Lingane, diejenigen an Platin der Heyrovsky-Ilkovic-Gleichung.
π SIMILAR VOLUMES
The molar enthalpy of occlusion of the (lithium chloride + potassium chloride) eutectic salt in zeolite 4A at the salt melting temperature occ H m (T fus ) was measured using differential scanning calorimetry. It was found that up to a mole fraction of the salt x = 0.931 in the (salt + zeolite) mixt