Salicylaldoxime

This crystalline, colorless solid is a chelator and sometimes used in the analysis of samples containing transition metal ions, with which it often forms brightly coloured coordination complexes.

It typically forms charge-neutral complexes with divalent metal ions.

Salicylaldoxime can be used to selectively precipitate metal ions for gravimetric determination.

It forms a greenish-yellow precipitate with copper at a pH of 2.6 in the presence of acetic acid.

In one application of hydrometallurgy, Cu2+ is extracted into organic solvents as its saloxime complex.

NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code
Structure of the copper(II) complex of the conjugate base of salicylaldoxime. The hydroxyl groups form hydrogen bonds to the phenolate oxygens.