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Extraction of cobalt-[4-(2-thiazolylazo)resorcinol] complexes

✍ Scribed by Lj. Marić; M. Široki; Z. Štefanac; M.J. Herak


Book ID
118910593
Publisher
Elsevier Science
Year
1981
Weight
300 KB
Volume
43
Category
Article
ISSN
0022-1902

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Extraction of 4-(2-pyridylazo) resorcino
✍ Lj. Marić; M. Široki 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 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