Thiocianate
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Development of flow procedures involving conventional spectrophotometry and long pathlenght for determination of anions in waters / Desenvolvimento de procedimentos em fluxo envolvendo espectrofotometria convencional e com longo caminho óptico para determinação de ânions em águas
In this work, five procedures were developed for determination of anions (chloride, sulphate, phosphate and fluoride), with spectrophotometric detection, being four employing a 100-cm optical length flow-cell and one of them employing a cell whith 1 cm optical length. The first procedure employing flow injection analysis with long pathlenght for chloride det
Publicado em: 2008
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2. Estudo crítico de equilíbrios no sistema cobalto (II)/tiocianato / Critical study of the equilibrium on the cobalt(II)/thiocianate system
The cobalt (II) /thiocyanate system in aqueous medium was studied with the purpose to obtain reliables data of overall stepwise formation constants to complexes. An indirect potentiometric method and a spectrophotometric one were used at 2,0 M ionic strength (NaCl04), at 25,0 ± O,l°oC. The cadmium(II)/thiocyanate system was used as indicator in the
Publicado em: 1984
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3. Estudo espectroscopico de compostos de oxovanadio (IV)
In this work we studied oxovanadium(IV) compounds, with the VO species coordinated to the following ligands: water, acetylacetone, thiocianate, 8-hydroxyquinoline, 2´,2´-bipyridyl, 1,10-phenantroline, 2,2 -bipyridylamine, oxalic acid and bissalicylaldehydeethylenediimine. Compounds having tne group VO are coordinated with a square pyramid structure. Thus,
Publicado em: 1979