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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 13, Number 1
JKCSEZ 13(1)
February 20, 1969

Title	Thermodynamics of Metal Chelate Formation of 8-Hydroxyquinoline-5-Sulfonic Acid 8-Hydroxyquinoline-5-Sulfonic Acid의 금속킬레이트 생성에 관한 열역학적 고찰
Author	Kun Moo Lee 이근무
Keywords
Abstract	Acid dissociation constants and chelate stability constants of 8-hydroxyquinoline-5-sulfonic acid have been determined for divalent metal ions. Co (Ⅱ), Ni (Ⅱ) and Zn (Ⅱ) by means of the Calvin-Bjerrum technique at the various temperatures. The standard free energy changes for the reactions at 20°, 30°, 40°and 50℃ were calculated, and the corresponding values ofΔH° and ΔS° applying over this temperature range are reported. The results are interpreted on the basis of current theories of metal chelate formation in aqueous solution.
Page	5 - 8
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