✦ LIBER ✦

Spectrophotometric determination of niobium in zirconium with 4-(2-pyridylazo)resorcinol

✍ Scribed by P. Pakalns; A.B. Ivanfy

Publisher: Elsevier Science
Year: 1968
Tongue: English
Weight: 508 KB
Volume: 41
Category: Article
ISSN: 0003-2670
DOI: 10.1016/s0003-2670(01)80370-6

No coin nor oath required. For personal study only.

✦ Synopsis

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 is dissolved by fusion with potassium hydrogen sulphate, for which finely divided samples are essential. WOOD

AND ADAMS~

Buff& solution, PIT 6.2. Dissolve 80 g of ammonium acetate in water, add 6.0

📜 SIMILAR VOLUMES

Spectrophotometric determination of niob

Spectrophotometric determination of niobium in steels with 4-(2-pyridylazo)-resorcinol

✍ P. Pakalns 📂 Article 📅 1968 🏛 Elsevier Science 🌐 English ⚖ 814 KB

Spectrophotometric extractive determinat

Spectrophotometric extractive determination of thiolactams with 4-(2-pyridylazo)-resorcinol and copper

✍ H. Sikorska-Tomicka; D. Popko 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 254 KB

The extraction-spectrophotometric determ

The extraction-spectrophotometric determination of chromium(III) with 4-(2-pyridylazo)-resorcinol

✍ Takao Yotsuyanagi; Yasuo Takeda; Ryuji Yamashita; Kazuo Aomura 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 754 KB

Application of experimental design for i

Application of experimental design for investigating the differential spectrophotometric determination of large amounts of niobium with 4-(2-pyridylazo)resorcinol

✍ Olga Grossmann 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 670 KB

An extraction-spectrophotometric determi

An extraction-spectrophotometric determination of palladium with 4-(2-pyridylazo)resorcinol in the presence of diphenylguanidine

✍ O. Coufalová; G. Rudzitis; G. Mežaraup; L. Čermáková 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 423 KB

Spectrophotometric determination of acid

Spectrophotometric determination of acidity constants of 4-(2-pyridylazo)resorcinol in binary methanol–water mixtures

✍ J. Ghasemi; A. Niazi; M. Kubista; A. Elbergali 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 155 KB

The acidity constants of 4-(2-pyridylazo)resorcinol (PAR, Scheme 1) in binary mixtures of methanol-water at 25 • 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