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vol.46 número1MONOMER UNITS DIFFERENTIATED SOLVATION IN AN ACRYLIC ACID CROSSLINKED POLYELECTROLYTE. A COMBINED HF/MD STUDY& índice de autoresíndice de assuntospesquisa de artigos
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Boletín de la Sociedad Chilena de Química

versão impressa ISSN 0366-1644

Resumo

LOPEZ, CLAUDIO; PONCE, PATRICIO; MOLINARI, AURORA  e  OLIVA, ALFONSO. FURTHER STUDIES ON THE SOLVENT EXTRACTION OF COPPER (II) WITH DITHIOCARBOXYLATE DERIVATIVES OF PYRAZOL. Bol. Soc. Chil. Quím. [online]. 2001, vol.46, n.1, pp.99-102. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442001000100015.

The solvent extraction behaviour of Cu(II), with 4-alkyldithiocarboxylate derivatives of pyrazol (HDTC ; alkyl = benzyl, allyl, n-hexadecyl , n-octadecyl) was studied as a function of pH. Cu(II) is efficiently extracted ( ³ 80% ) in the pH range studied. In all cases the extracted specie was found to be Cu(DTC)2

Palavras-chave : Solvent extraction; Cu (II) extraction; pyrazoles; 1-phenyl-3,5-dioxopyrazolidine; alkyldithiocarboxylates.

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