Resumo

TICONA, Wilma; BLANCO, Mario  e  CABRERA, Saúl. CARACTERIZACIÓN QUIMICA MINERALÓGICA ESTRUCTURAL DE DOS ARCILLAS BOLIVIANAS. Rev. Bol. Quim [online]. 2006, vol.23, n.1, pp.71-76. ISSN 0250-5460.

The present article summarizes the chemistry, mineralogical and structural characterization of two “phasas” (clays montmorillonite type) strongly utility in traditional medicine in the “Altiplano” region of Bolivia, one from to Achocalla locality (La Paz) and other Andamarka (Oruro), Bolivia. Both present how phases of interest the clay montmorillonite, but the La Paz clay have more impurity (pheldespate phases), in the other the minor phase impurity is the silice quartz type. The more Sodic - Potasic character of La Paz clay, in front of the calcic character of Oruro clay, this favoured the glycol and water adsorption, hydration end acid neutralization properties in the La Paz clay. In this sense this clay has better properties to your application in traditional medicine.

Palavras-chave : montmorillonita; arcilla; esmectitas; caracterización; estructura; ph’asa.