Molten salts :

Abstract

Rubidium nitrite 25 Cesium nitrite 25 Barium nitrite 25 Lithium nitrate 25 Sodium nitrate 25 Potassium nitrate 26 Rubidium nitrate 27 Cesium nitrate 28 Silver nitrate 28 Thallium (I) nitrate . 28Vanadium pentoxide and chromium trioxide..

Anomaly in the viscosity of liquid KCl at high pressures

“…Figure 3 shows viscosities of KCl and NaCl liquids as a function of pressure along the melting curves. At ambient pressure, the viscosities of both liquids are similar [24] and remain so up to 1.5 GPa (Fig. 3).…”

“…These measurements were confined to highly viscous materials due to the limited imaging rate (typically 30-60 frames/second and up to 125 frames/second) in common x-ray radiography apparatus. As a consequence, it was difficult to investigate low viscosity liquids such as metals [23] and salts [24] whose viscosities are around 1 mPa s or less at ambient pressure. Some studies report viscosities in the 4-20 mPa s range for iron alloys [18,19] using falling sphere velocities determined based on only 2 -4 images.…”

“…The density of the spheres was calculated by the equation of state for platinum [34]. For densities of the liquids, however, we used those of liquid NaCl (1.547 g/cm 3 ) and liquid KCl (1.518 g/cm 3 ) at ambient pressure and 817 °C and 787 °C, respectively [24], because liquid densities at high pressures and high temperatures corresponding to our experimental conditions have not been reported. The use of constant liquid densities does not significantly influence the viscosity determination because of the large difference in densities between Pt (e.g.…”

NO x conversion on porous LSF15–CGO10 cell stacks with KNO3 or K2O impregnation

“…The latter point follows from the conductivities of CGO being ≈0.001 S/cm at 350 °C [21] while the conductivity of the molten KNO 3 at 350 °C is 0.699 S/cm [36], which means at 350 °C the reduced serial resistance observed for the KNO 3 impregnated sample may be explained by the current passing through the KNO 3 instead of the CGO electrolyte . Unfortunately it has despite of extensive search not been possible to find information on the conductivity of K 2 O and solid KNO 3 at 300 °C, for this reason it cannot be estimated here, if an alternative current path is a realistic explanation of the reduced serial resistance observed on the impregnated cell stacks at 300 °C.…”

Evidence of dynamical local scale distribution heterogeneities in CsF-AF (A=Li, Na, K and Rb) molten salts

“…Their viscosity is known to be of the same order of magnitude than liquid water, which means that these liquids are highly fluid. 43 The structure of alkali fluorides has been considered simple until Page 4 of 17 A c c e p t e d M a n u s c r i p t 4 molecular dynamics simulation on LiF-KF 50-50 mixture predicted the existence of dynamical local heterogeneities, i.e. incomplete mixing at the nanoscopic scale.…”