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Metal complexes of 4-(2'-thiazolylazo)-resorcinol: A comparative study with 4-(2'-pyridylazo)-resorcinol

✍ Scribed by R.W. Stanley; G.E. Cheney


Book ID
118990101
Publisher
Elsevier Science
Year
1966
Tongue
English
Weight
748 KB
Volume
13
Category
Article
ISSN
0039-9140

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Extraction of 4-(2-pyridylazo) resorcino
✍ Lj. MariΔ‡; M. Ε iroki πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 792 KB

The extraction of 4-(2-pyridylazohesorcinol (PAR) and 4-(2-thiazolylazo)resorcinol (TAR) with chloroform alone and in the presence of tetraphenylarsonium or tetraphenylphosphonium chloride (Ph,XCl) was studied. In the optimum pH range 3.5-5 for PAR and 1.5-5 for TAR, 94-95% of the reagents was extra