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A MINERALOGICAL STUDY OF THE COLLOID FRACTIONS OF SOME GREAT SOIL GROUPS, WITH PARTICULAR REFERENCE TO ILLITES

โœ Scribed by A. KARIM

Book ID
108714311
Publisher
John Wiley and Sons
Year
1954
Tongue
English
Weight
281 KB
Volume
5
Category
Article
ISSN
1351-0754

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A study on the effect of colloidal silic
A study on the effect of colloidal silica in peptising iron oxide with reference to red brown soil formation on limestone
โœ D. H. Khan ๐Ÿ“‚ Article ๐Ÿ“… 1960 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 304 KB ๐Ÿ‘ 2 views

## Abstract Colloidal silica will peptise Fe~2~O~3~ in alkaline media containing Na ions, but Ca ions cause flocculation of the silica and no peptisation of Fe~2~O~2~ occurs. It is concluded that the theory of Reifenberg on the formation of __terra rossa__ on limestone is untenable.