iicigtrls. N.S. IV. (R rtstraliu) (Rcccivcd October xqth, xgG7) ELWELL AND WOODI described the determination of 27% niobium in zirconium alloys, based on the formation of a yellow-coloured complex when niobium ions react with pyrogallol in an alkaline solution of ammonium oxalate; zirconium metal i
β¦ LIBER β¦
Spectrophotometric determination of niobium in steels with 4-(2-pyridylazo)-resorcinol
β Scribed by P. Pakalns
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- English
- Weight
- 814 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0003-2670
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The acidity constants of 4-(2-pyridylazo)resorcinol (PAR, Scheme 1) in binary mixtures of methanol-water at 25 β’ C and an ionic strength of 0.1 M have been determined spectrophotometrically. DATa ANalysis (DATAN) program applied for determination of acidity constants. As percent of methanol increase