Zinc chloride, molten

Heated zirconium is readily chlorinated by ammonium chloride, molten stannous chloride, zinc chloride, and chlorinated hydrocarbons and the common chlorinating agents. It is slowly attacked by molten magnesium chloride in the absence of free magnesium, which is always present in the KroU process. 

Betterton (2) A process for removing zinc from lead by reaction with gaseous chlorine at 400°C. The resulting zinc chloride floats on the molten metal and is skimmed off. Invented in 1928 by J. O. Betterton at the American Smelting Refining Company. 

Lacell A zinc extraction process in which zinc sulfide is converted to zinc chloride and molten sulfur, and the molten zinc chloride is electrolyzed. 

The electrochemistry of Cd(II) was investigated at different electrodes (GC, polycrystalline tungsten, Pt, Ni) in a basic l-ethyl-3-methylimidazolium chloride/tet-rafluoroborate, at room temperature molten salt [312], and in acidic zinc chloride-l-ethyl-3-methylimidazolium [284]. 

Use of Zinc Chloride in Soldering. Glean two copper wire ends with emery paper and place them on a sheet of asbestos so that they are in contact with each other. Put 1-2 g of metallic tin on the asbestos sheet. Heat an electrical soldering iron until it acquires a dark red glow, touch the tin with it, and transfer the drop of molten tin to the place of contact of the copper wires. What do you observe Did the tin solder the ends of the wires ... 

Molten zinc chloride has a remarkably high viscosity at its melting point (318 °C) and an X-ray diffraction study at 323 °C has revealed that the liquid consists of [ZnCLj2- and Zn2+ ions, rather than molecular ZnCl 929 The conductivity of ZnCl2-UCl melts has been investigated.930... 

A number of apparently conflicting reports have appeared, describing the liquid state for which molten zinc chloride has been taken as a model in non-compatible schemes. A... 

Zinc-Ammonium Chloride (ZnCla,2NH3).—This compound is formed by passing a current of dry ammonia gas into molten zinc chloride. It can also be obtained by passing the gas over pulverised anhydrous zinc chloride. This compound gives up ammonia on heating and is used in place of the concentrated solution in certain reactions. 

The above work concentrated most of its attention on the use of zinc chloride as the molten halide and on the use of bituminous coal extract as feed to the process. Hydrocracking of the extract (1) and regeneration by a fluidized-bed combustion technique of the spent catalyst melt (2) from the process were both demonstrated in continuous bench-scale units. 

Before starting this work, it was feared that considerable chlorine would be lost as calcium chloride by interaction of the calcium in the coal ash with the zinc chloride, but it appears that essentially no chlorine is lost in this manner. In both runs 3 and 11, the bed solids contain substantially no chlorine whereas they contained a large percentage of the calcium that was fed. Since calcium chloride is molten but nonvolatile at combustion temperature, it would be expected that any calcium chloride would be retained in the bed solids. Since none was, it is concluded that no calcium chloride was formed. It also appears that no magnesium chloride was formed. 

An electrolytic cell contains molten ZnCl2. The zinc chloride is electrolyzed by... 

Some idea of how Raman spectroscopy works—how light from nonelastic scattering on molecules contains information on the vibratory state of the bonds therein— has been given in Section 2.11. Raman spectroscopy can be used to obtain information on the structure of ions in molten salts, as has been shown in the last three sections. Ha-e, two further molten salt systems that eontain eomplexes and that have been subjected to Raman spectroscopy are described. The first one concerns melts of zinc chloride hydrate. 

Angell, C. A., and D. M. Gruen (1%7). Octahedral and tetrahedral coordination states of cobalt (II) in molten zinc chloride-aluminum chloride mixtures. J. Inorg. Nucl. Chem. 29, 2243—47. 

An electrolytic cell contains molten ZnCl2. The zinc chloride is electrolyzed by passing a current of 3.0 A through the cell for a certain length of time. During this process, 24.5 g of Zn are deposited on the cathode. 

Preparation, purity, and properties of the sulfonephthaleins. The preparation of the various sulfonephthaleins from o-sulfobenzoic acid, molten zinc chloride, and a phenol (which may be halogen substituted) has been described by Clark and Lubs. A. Cohen has reported his method of obtaining xylenolsulfone-phthalein, while a number of other valuable sulfonephthaleins have become available through the work of Barnett Cohen. ... 

Chen PY, Sun IW (2001) Electrodeposition of cobalt and zinc-cobalt alloys from a Lewis acidic zinc chloride-l-ethyl-3-methylimidazolium chloride molten salt. Electrochim Acta 46 1169-1174... 

Hsu HY, Yang CC (2003) Conductivity electrodeposition and magnetic property of cobalt (II) and dysprosium chloride in zinc chloride-l-ethyl-3-methylimidazolium chloride room temperature molten salt. Z Naturforsch 58B 139-145... 

Proton, and the individual propaties by Halli- of molten zinc chloride, 706... 

Sodium hydroxide, hydrogen, and chlorine can be produced concurrently in a cell where a sodium chloride-zinc chloride mixture is separated from sodium hydroxide with a beta-alumina diaphragm. In such a cell (which to date has simply been bench tested), pure molten sodium hydroxide and dry chlorine are produced. Because of the higher temperature, the cell operates at lower overvoltage and ohmic loss than the conventional aqueous electrolytic processes (38). 

While many studies have been carried out aimed at the feedstock recycling of rubber wastes by pyrolysis and hydrogenation processes (see Chapters 5 and 7), little information is found on the catalytic cracking and reforming of rubber alone. Larsen35 has disclosed that waste rubber, such as used tyres, can be degraded in the presence of molten salt catalysts with properties as Lewis acids, such as zinc chloride, tin chloride and antimony iodide. The decomposition proceeds at temperatures between 380 and 500 °C to yield gases, oil and a residue, in proportions similar to those obtained by simple thermal decomposition. 

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