This work represents the preliminary experiments of an attempt to determine the mechanism of certain chemical exchange reactions taking place when an alkali metal zeolite is treated with a solution of an alkaline-earth metal salt, and vice versa.Chlorides of sodium, barium, and calcium in aqueous solutions of varying concentrations were used. The possible selective action on a zeolite of a solution carrying a mixture of alkaline-earth ions was
Weight of iron -theoretically deposited, 47.6 grams. Current efficiency = gg per cent. Current density = 0 . 5 6 amp. [Idcm. = 5 . z amPs*il'. No. watt hours = 0 . 3 2 3 X 141 X 0 . 6 7 = 3 0 . 5 . I watt hour = I . 55 grams iron. I kw. hour = 3 . 4 lbs. The following readings were taken:
Volt.Amp.
The results of the experiments indicate that lime added to a clay, of the type studied here, combined chemically with certain of the various constituents of the clay when the mixture was fired a t 1000°C. There is also an indication of reactions between iron oxide and silica. The exact nature and extent of these several possible reactions cannot be determined from the data of this limited experimental work.It would be of great value for work of this kind if more information was available relative to the chemical action of various reagents upon the several constituents of clay. Obviously it would be necessary to use pure substances representing these constituents rather than any mixture of them.Work was undertaken to obtain indication of the chemical changes which occur on firing a low lime clay and the same clay with calcium-carbonate additions.
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