Abstract
ACCORDING to Reifenberg1 colloidal silicic acid has an important role in the development of terra rossa. In order to substantiate this theory the existence of water-soluble colloidal silicic acid should be proved. The present work is an attempt to estimate colloidal silicic acid in water extracts of Israel terra rossa.
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References
Reifenberg, A., The Soils of Palestine (Thomas Murby and Co., London, 1947).
Snell, F. D., and Snell, C. T., Colorimetric Methods of Analysis (Van Nostrand, New York, 1941).
Ostwald, W., Kleines Praktikum der Kolloidchemie (J. Springer, Berlin, 1920).
Stoeber, W., Koll. Z., 147, 131 (1956).
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ELIASSAF, J. Colloidal Silicic Acid in Terra Rossa. Nature 194, 409–410 (1962). https://doi.org/10.1038/194409a0
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DOI: https://doi.org/10.1038/194409a0
