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The solubility of potassium bichromate In water and the density, viscosity, and refractive Index of saturated aqueous potassium bichromate solutions were determined between 20 and 60 °C. The apparent partial molal volume of the solute as a function of temperature and the dependence of the logarithm of solubility on reciprocal temperature show bends at about 40 °C. However, the temperature dependences of density, refractive Index, and viscosity of saturated solutions do not show any unusual behavior at this temperature. Density and refractive Index In undersaturated and supersaturated regions of the solutions saturated at particular temperatures are approximately linear functions of temperature around saturation points.

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