Eutectic mixtures, inorganic

Hitec Heat-Transfer Salt. Hitec heat-transfer salt, manufactured by Coastal Chemical Co., is an eutectic mixture of water-soluble inorganic salts potassium nitrate (53%), sodium nitrite (40%), and sodium nitrate (7%). It is suitable for Hquid-phase heat transfer at temperatures of 150—540°C. 

The entire inventory of munitions at the PCD contains mustard agent. Most projectiles contain agent HD, which is distilled P,P -dichloroethyl sulfide. Some contain HT, a 60 40 eutectic mixture of HD and bis[2-(2-chloroethylthio)-ethyl] ether. All munitions may contain manufacturing byproducts or impurities, degradation products, and inorganic residues. 

Most inorganic salts, when they melt, are found to flow and conduct electricity according to a simple Arrhenius law at all temperatures down to their melting points. For instance, unless measurements of high precision are used, the alkali halides appear to remain obedient to the Arrhenius equation even down to the deep eutectic temperatures of their mixtures with other salts. LiCl and KCl form a eutectic mixture with a freezing point of 351°C, some 300 K below either pure salt freezing point, yet the viscosity of the melt barely departs from Arrhenius behavior before freezing. 

High-energy batteries with a lithium anode are classified < with regard to the type of their ionic conductor. This can be a fast solid Li -ion conductor, a fused lithium salt, a lithium-potassium-salt eutectic mixture, or a non-aqueous lithium salt solution. If inorganic solvents are used, e.g. SOj, SOClj, SOjClj, the solvent itself is the depolarizer and then a solid catalytic electrode is needed, e.g. carbon. The type of ionic conductor determines the internal resistance of the cell and the working temperature range and hence the possible technical applications. 

Almost all reported ionic liquids consist of organic cations and inorganic anions. Only a few publications deal with ionic liquids completely formed by inorganic compounds and most of them treat eutectic mixtures. The work of Shan and co-workers is an exception in this field, as it describes ionic liquids formed by just inorganic cations and anions [63]. In their work, they describe a class of anions formed by polyoxometallates with the Keggin structures bound... 

The phase diagrams (Fig. 28) of the chloride salts of Sn, Pb, Cu, Ag, and Zn depict four pairs of inorganic salts forming eutectic mixtures. It is interesting to note that they are molten and... 

Inorganic Salts Several formulations are known but the most widely used salt is a molten mixture of the eutectic NaN02 (40%)/NaNO3 (7%) /KN03 (53%), for operation between 146 °C (melting point) and 454 °C. 

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