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Crystallization temperatures (liquidus and solidus) in the LiCl-Li2O and (LiCl-KCl)-Li2O systems with the KCl content of 10 and 20 mol.% were obtained with independent methods of thermal analysis using cooling curves, isothermal saturation, and differential scanning calorimetry. The linear sweep voltammetry was applied to control the time of the equilibrium establishment in the molten system after the Li2O addition, which depended on the composition of the base melt and the concentration of Li2O. The fragments of the binary LiCl-Li2O and quazi-binary [LiCl-KCl(10 mol.%)]-Li2O and [LiCl-KCl(20 mol.%)]-Li2O phase diagrams in the Li2O concentration range from 0 to 12 mol.% were obtained. The KCl presence in the LiCl-KCl-Li2O molten mixture in the amount of 10 and 20 mol.% reduces the liquidus temperature by 30 and 80°, respectively, but the region of the homogeneous molten state of the system is considerably narrowed, which complicates its practical application. The Li2O solubility in the molten LiCl, LiCl-KCl(10 mol.%) and LiCl-KCl(20 mol.%) decreases with increasing the KCl content and is equal to 11.5, 7.7 and 3.9 mol.% at 650°С, respectively. The LiCl-KCl melt with 10 mol.% KCl can be recommended for practical use as a medium for the SNF pyro-chemical reprocessing at temperature below 700 °C.

This article examines the phenomenon of the marginal, then rebellious and simultaneously fleeing court of Marguerite de Valois, queen of Navarre, from 1585 to 1587. It takes a fresh look at her household, her courtiers, her finances, and how the Queen relied on families with local connections in the regions of exile as a means of maintaining her status as a royal figure. By acquiring the nature of a political phenomenon, in the conditions of the decisive phases of the Civil Wars in France, her flight was, undoubtedly, a destructive factor for the Valois monarchy. In these circumstances King Henry III, the Guise family, Philip II of Spain, and later Henry IV, all recognized the political importance of the figure of Queen Marguerite (and her court) in the processes of preserving cohesion for the country and the legitimacy of royal power.