AMMONIUM OXALATE AND CITRATE-ASCORBATE AS SELECTIVE CHEMICAL AGENTS FOR THE MINERALOGICAL ANALYSIS OF CLAY FRACTIONS OF AN ULTISOLAND ANDISOLS FROM SOUTHERN CHILE
Two selective chemieal treatments consisting of mixtures of (i) oxalic acid - ammonium oxalate at pH 3 (OX) and (ii) sodium citrate - ascorbic acid at pH 6 (CA) were used to selectively remove minerals from clay fractions of four volcanic soils: one from an Ultisol and three Andisols, of the souther...
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| Auteurs principaux: | , , , , |
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| Langue: | English |
| Publié: |
Sociedad Chilena de Química
2008
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| Accès en ligne: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000300006 |
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