The book Soil Alkali Its Origin Nature And Treatment was written by author Franklin Stewart Harris Here you can read free online of Soil Alkali Its Origin Nature And Treatment book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Soil Alkali Its Origin Nature And Treatment a good or bad book?
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As seen in the above table of solubilities, calcium chloride is very soluble and might easily be washed from the soil so that the above reaction might under certain conditions result in the formation of considerable black alkali. In like manner, other apparently stable salts might, by changes in molecular concentrations, react to form new substances not possible under ordinary conditions, and in case one or both of the end products were taken from the active mass, there might be a profound chan...ge in the composition of the chemical compounds. California experiments (4) show that up to a strength of about 4000 parts per million of sodium sulphate, this ABSORPTION OF SALTS BY SOILS 109 substance could be made to change into sodium carbonate in the presence of precipitated calcium carbonate through which carbon dioxide was being forced, but that the action was most vigorous when the strength of sodium sulphate was only 750 parts per million. This is the probable ex- planation of the fact discovered by certain investigators (5) that black alkali was formed about the roots of plants growing on white alkali.
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