Data/hora: 05/06/2024 11:52:43

Biblioteca(s): | Embrapa Soja.
Data corrente: | 14/07/1992
Data da última atualização: | 08/05/2006
Autoria: | GONZALES, M.; IGUE, K.
Afiliação: | IICA.
Título: | Medicion de la densidad de carga superficial en arcillas alofanicas por adsorcion de diquat y paraquat.
Ano de publicação: | 1972
Fonte/Imprenta: | Turrialba, v.22, n.1, p.102-105, 1972.
Idioma: | Espanhol
Conteúdo: | Surface charge density of clay minerals predominantly allophanic, was measured by competitive adsorption of diquat+2 and paraquat+2. The value measured for one clay sample (Cervantes soil) was found to be 9.10 4 esu/cm2 (3.21 x 10 -3 meq/m2). This value is close to that obtained by the method of CIC/surface, at pH 7.0. Highly colored solutions obtained after equilibration was indicated as the main problem in allophanic clays. The method should be improved before it is recommended as routinary technique.
Thesagro: | Argila; Solo.
Thesaurus Nal: | clay minerals; soil.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (13740-1) - ADD - SP - -- - 9601 -  - 9601 - DIS