|
Melis, Pietro and Premoli, Alessandra Maria and De Cherchi, M. L. and Gessa, Carlo Emanuele (1981) Effetto dei trattamenti termici e chimici sulla capacità di scambio della frazione argillosa di alcuni suoli bruni. Studi sassaresi: organo ufficiale della Società sassarese di Scienze mediche e naturali. Sez. 3: Annali della Facoltà di Agraria dell'Università di Sassari, Vol. 28 (1980-1981) , p. 40-49. ISSN 0562-2662. Article.
AbstractVariations of permanent and pH-dependent charges of soil clays subjected to thermal and chemical treatments were studied. The permanent charge was considerably reduced either on heating samples at 400°C or on acid treatment. A strong hysteresis of the permanent charge occurred in the heated samples treated with NaOH. The decrease in permanent charge after attack with HCl was due to vermiculite decomposition. The different behaviour of the pH-dependent charge was attributed to the structural changes which different treatments can give rise on the interlayer materials.
I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore Repository Staff Only: item control page |


