With cadmium carbonate

Cadmium Dichromate, CdCrjO. HjO, is obtained by saturating a cold solution of chromic acid with cadmium carbonate, and concentrating by evaporation, when orange-brown cubic crystals separate, which are readily soluble, without decomposition, in water. 

The aldonic acids of the pentose series were prepared similarly. L-Arabonic acid was isolated by Kiliani as the calcium salt, and Ruff prepared calcium n-arabonate. In the latter case almost quantitative yields were reported. n-Lyxonic acid was isolated as the basic lead salt and converted to the crystalline lactone by Wohl and List. n-Ribose was oxidized to the crystalline cadmium n-ribonate by Levene and Jacobs the yield was less than 50%. The well-known boat-shaped crystals of the double salt of cadmium n-xylonate-cadmium bromide were prepared by the oxidation of n-xylose with an excess of bromine by Ruff, followed by a subsequent treatment with cadmium carbonate. Ruff also prepared L-erythronic acid, isolating it as the brucine salt the starting material was a crude n-erythrose sirup prepared by degradation of calcium L-arabonate. 

Early workers relied completely on the use of heavy metal salts in the hydrolysis of dithioacetals. The initial use of mercuric chloride with cadmium carbonate in hydroxylic medium was modified and generally improved by the substitution of mercuric oxide for the cadmium carbonate . However, in some cases the results of this method of hydrolysis have been disappointing. This is especially true in the recovery of aldehydes and steroidal ketones from their dithioacetals. Recently, numerous new methods of hydrolysis have emerged significantly changing the stature of dithioacetals as blocking groups. 

Cleavage to the parent carbonyl group by acid is often unsatisfactory and is best done by the action of mercuric salts in various solvents [83, 95, 96, 97], or of mercuric chloride together with cadmium carbonate in acetone [98, 99]. When the mercuric salt cleavage is done in alcohols the corresponding dialkyl acetal may be obtained directly [82, 100, 101, 102], this may apply to dialkylthio acetals but not to the corresponding dithiolans [82]. The reverse conversion (dialkyl acetal to dialkylthio acetal) may also be realized under appropriate conditions [103]. 

Preparation by treatment of 2,6-dihydroxypropio-phenone with cadmium carbonate in refluxing toluene for 1 h with removal of the generated water with a Dean-stark apparatus. Then, adding aceto-bromoglucose and the whole heated at reflux for 15 h (55%) [6813]. 

Dimethyl ketals and enol ethers are stable to the conditions of oxime formation (hydroxylamine acetate or hydroxylamine hydrochloride-pyridine). Thioketals and hemithioketals are cleaved to the parent ketones by cadmium carbonate and mercuric chloride. Desulfurization of thioketals with Raney nickel leads to the corresponding methylene compounds, while thioenol ethers give the corresponding olefin. In contrast, desulfurization of hemithioketals regenerates the parent ketone. ... 

Tellurium and cadmium Electrodeposition of Te has been reported [33] in basic chloroaluminates the element is formed from the [TeCl ] complex in one four-electron reduction step, furthermore, metallic Te can be reduced to Te species. Electrodeposition of the element on glassy carbon involves three-dimensional nucleation. A systematic study of the electrodeposition in different ionic liquids would be of interest because - as with InSb - a defined codeposition with cadmium could produce the direct semiconductor CdTe. Although this semiconductor can be deposited from aqueous solutions in a layer-by-layer process [34], variation of the temperature over a wide range would be interesting since the grain sizes and the kinetics of the reaction would be influenced. 

Papadopoulos P., Rowell D.L. The reaction of cadmium with calcium carbonate surfaces. J Soil Sci 1988 39 23-36. 

Knight BP, McGrath SP, Chaudri AM (1997) Biomass carbon measurements and substrate utilization patterns of microbial populations from soils amended with cadmium, copper, or zinc. Appl Environ Microbiol 63 39 43... 

The most efficient system devised by Monsanto uses electrodes fabricated from carbon steel plate, electro-coated on one face with cadmium. These are stacked in parallel so that the electrolyte can be pumped through the gap between successive plates. Overall tire system forms a series of electrochemical cells with a cadmium cathode and a carbon steel anode. Each plate of metal forms the cathode of one cell and the anode of the next in the stack. Electric current is passed across the stack. The electrolyte contains phosphate and borate salts as corrosion inhibitors, EDTA to chelate any cadmium and iron ions generated by corrosion together with hex-amethylenebis(ethyldibutylammonium) phosphate to provide the necessary telraal-kylammonium ions. This electrolyte circulates through the cell from a reservoir and there is provision for the introduction of acjylonitrile and water as feedstock. The overall cell reaction is ... 

Cadmium carbonate also may be obtained by slow absorption of cadmium oxide with carbon dioxide. 

Cadmium oxide also may be prepared by several other routes starting with various cadmium salts. The compound can be made by thermal decomposition of cadmium carbonate or cadmium hydroxide ... 

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