Nonylsalicylaldehyde oxime

A criterion of the interfacial reaction in the chelate extraction was that the interfacial ligand concentration had to follow an adsorption isotherm. This was proved in the extraction systems of Ni(II) with 2-hydroxy oxime such as 5-nonylsalicylaldehyde oxime (P50) [31], 2-hydroxy-5-nonylacetophenone oxime (SME529) [32] and 2 -hydroxy-5 -nonylbenzophenone oxime (LIX65N) [33]. These extractants were adsorbed at the interface in their neutral forms, obeying the Langmuir isotherm ... 

A product having a different use, namely as the oxime in the extraction of copper(ll) from dilute aqueous solution, is derived by the nucleophilic reaction of 4-nonylphenol, behaving as the 2-carbanion, with benzotrichloride in the presence of sodium hydroxide solution, to afford after hydrolysis of the intermediatedichlorocompound, 2-hydroxy-5-nonylbenzophenone (ref.54). The oxime of this compound is similar in properties to the 5-dodecyl analogue known as Ux 64N (Henkel Co.). The Acorga series of metal extractants derived from2-hydroxy-5-nonylsalicylaldehyde are more commercialy significant and are referred to later. 

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