Testing the Conformal Ionic Solution Theory for the Additive Ternary Molten Salt System

The conformal ionic solution theory predicts excess chemical potentials of the components in a ternary additive molten salt system, if suitable thermodynamic data on the three subsidiary binary molten salt systems are available. The excess chemical potential of AgCl in the system AgCl-LiCl-KCl has been calculated theoretically, using the published data on binary molten salt systems AgCl-LiCI, AgCl-KCl and LiCl-KCl. The calculated values are compared with the corresponding data based on emf measurements in the ternary system, and discussed with respect to the use of the theory in the thermodynamics of additive molten salt systems

Calculation of Phase Diagrams of Ternary Reciprocal Molten Salt Mixtures. The System Li+-K+-F--Cl-

In order to calculate phase diagrams of ternary reciprocal molten salt systems, the conformal ionic solution theory and an earlier developed binary ionic-interaction model has been used to derive the excess chemical potentials of the components. A computer program has been developed which delivers data on phase equilibria in the form of tables of liquidus temperatures against the composition of the system. The method of calculation has been applied to the system Li+-K+-F--Cl- and the calculated phase diagram is compared with the experimental one

Ellipsoidal shapes in general relativity: general definitions and an application

A generalization of the notion of ellipsoids to curved Riemannian spaces is given and the possibility to use it in describing the shapes of rotating bodies in general relativity is examined. As an illustrative example, stationary, axisymmetric perfect-fluid spacetimes with a so-called confocal inside ellipsoidal symmetry are investigated in detail under the assumption that the 4-velocity of the fluid is parallel to a time-like Killing vector field. A class of perfect-fluid metrics representing interior NUT-spacetimes is obtained along with a vacuum solution with a non-zero cosmological constant.Comment: Latex, 22 pages, Revised version accepted in Class. Quantum. Grav., references adde

Chloride and Bromide Complexes of Lead(II) in Aqueous Melts of Calcium Dinitrate - Ammonium Nitrate

The formation constants of PbCl+, PbCh, PbBr• and PbBr2 in melts of Ca(N03)2 • a NH4N03 · x H20 (a = 1.5, 2.33; x = 3-9) at 323 and 338 K have been determined from E 1lF measurements in suitable concentration cells. The results are discussed in terms of Braunstein\u27s ionic association model based on quasi-lattice statistical mechanics

A rotating three component perfect fluid source and its junction with empty space-time

The Kerr solution for empty space-time is presented in an ellipsoidally symmetric coordinate system and it is used to produce generalised ellipsoidal metrics appropriate for the generation of rotating interior solutions of Einstein's equations. It is shown that these solutions are the familiar static perfect fluid cases commonly derived in curvature coordinates but now endowed with rotation. The resulting solutions are also discussed in the context of T-solutions of Einstein's equations and the vacuum T-solution outside a rotating source is presented. The interior source for these solutions is shown not to be a perfect fluid but rather an anisotropic three component perfect fluid for which the energy momentum tensor is derived. The Schwarzschild interior solution is given as an example of the approach.Comment: 14 page

Gamma spectrometry in the ITWG CMX-4 exercise

Low enriched uranium samples of unknown origin were analyzed by 16 laboratories in the context of a Collaborative Materials Exercise (CMX), organized by the Nuclear Forensics International Technical Working Group (ITWG). The purpose was to compare and prioritize nuclear forensic methods and techniques, and to evaluate attribution capabilities among participants. This paper gives a snapshot of the gamma spectrometric capabilities of the participating laboratories and summarizes the results achieved by gamma spectrometry

Testing the Conformal Ionic Solution Theory for the Additive Ternary Molten Salt System

The conformal ionic solution theory predicts excess chemical potentials of the components in a ternary additive molten salt system, if suitable thermodynamic data on the three subsidiary binary molten salt systems are available. The excess chemical potential of AgCl in the system AgCl-LiCl-KCl has been calculated theoretically, using the published data on binary molten salt systems AgCl-LiCI, AgCl-KCl and LiCl-KCl. The calculated values are compared with the corresponding data based on emf measurements in the ternary system, and discussed with respect to the use of the theory in the thermodynamics of additive molten salt systems

Chloride and Bromide Complexes of Lead(II) in Aqueous Melts of Calcium Dinitrate - Ammonium Nitrate

The formation constants of PbCl+, PbCh, PbBr• and PbBr2 in melts of Ca(N03)2 • a NH4N03 · x H20 (a = 1.5, 2.33; x = 3-9) at 323 and 338 K have been determined from E 1lF measurements in suitable concentration cells. The results are discussed in terms of Braunstein\u27s ionic association model based on quasi-lattice statistical mechanics