Dtermination of palladium with 4-(2-thiazolylazo)-1-naphthol
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چکیده
منابع مشابه
Liquid chromatography of palladium and non-ferrous metal chelates with 1-(2-pyridylazo)-2-naphthol.
1-(2-Pyridylazo)-2-naphthol has been used for extraction concentration of palladium, copper, cobalt and nickel from aqueous solutions and subsequent separation of the chelates obtained, by means of high-pressure liquid chromatography. A technique for determining microamounts of palladium in aqueous solutions in the presence of 100-fold ratio of copper and 80-fold ratio of cobalt has been develo...
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The title compound, C(11)H(9)NO(2), was prepared by a condens-ation reaction of 2-hydr-oxy-1-naphthaldehyde with hydroxyl-ammonium chloride in refluxing ethanol. An intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, inter-molecular O-H⋯O and C-H⋯O hydrogen-bond inter-actions result in a two-dimensional network.
متن کاملCloud Point Extraction of Palladium as Chelate with 1-(2-pyridylazo)-2-naphthol Using Triton X-114 Prior to Determination in Real Samples by ETAAS
A pre-concentration and determination methodology for palladium in real samples at ultra-trace levels by 1-(2-pyridylazo)-2-naphthol (PAN) was developed. The analyte in the initial aqueous solution, acidified with HCl, was complexed with PAN and Triton X-114 was added as a surfactant. The surfactant-rich phase was diluted with concentrated HNO3 (65%, w/w) after phase separation. Then, the conce...
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In the crystal structure of the title cocrystal, 2C(24)H(18)ClNO(2)·C(6)H(12)N(2), the 1,4-diaza-bicyclo-[2.2.2]octane mol-ecule is located on a twofold rotation axis and linked to the two triaryl-imine mol-ecules by O-H⋯N hydrogen bonds, forming a 2:1 aggregate. C-H⋯Cl inter-actions are also observed. In the triaryl-imine mol-ecule, the naphthalene ring system makes dihedral angles of 80.39 (6...
متن کاملCyclization of hydrazones of 2-acetyl-1-naphthol and 1-acetyl-2-naphthol with triphosgene. Synthesis of Spiro naphthoxazine dimers.
Cyclization of hydrazones derived from 2-acetyl-1-naphthol and 1-acetyl-2-naphthol with triphosgene gave naphtho[1,2-e]-1,3-oxazines, naphtho[2,1-e]-1,3-oxazines or their spiro dimers depending on the molar ratio of triphosgene used for the cyclization.
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1963
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.12.714