Pregled bibliografske jedinice broj: 398867
Extraction and Separation of Niobium(V) with 3-Hydroxy-2-Methyl-1-Phenyl-4-Pyridone
Extraction and Separation of Niobium(V) with 3-Hydroxy-2-Methyl-1-Phenyl-4-Pyridone // Solvent extraction and ion exchange, 5 (1987), 5; 909-922 (međunarodna recenzija, članak, znanstveni)
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Naslov
Extraction and Separation of Niobium(V) with 3-Hydroxy-2-Methyl-1-Phenyl-4-Pyridone
Autori
Tamhina, Biserka ; Gojmerac Ivšić, Astrid
Izvornik
Solvent extraction and ion exchange (0736-6299) 5
(1987), 5;
909-922
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
extraction; niobium; 4-pyridone derivatives
(extraction; niobium(V); 4-pyridone derivatives; spectrophotometry)
Sažetak
Niobium(V) in hydrochloric and sulphuric acid media in the presence of an excess of chloride or thiocyanate ions reacts with 3-hydroxy-2-methyl-1-phenyl-4-pyridone(HX) to give complexes which are extractable into chloroform. The experimental conditions for the quantitative extraction of niobium and its subsequent spectrophotometric determination in the organic phase are described. The mechanism of extraction is based on the formation of mixed Nb(OH)3ClX or Nb(OH)3(NCS)X complex. The extraction with HX permits to separate niobium(V) from zirconium(IV) and hafnium(IV).
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
