Sodium gentisate synthesis

Yield:-

Reaction Conditions:

with sodium hydroxide in water

Steps:

Experimental
Sodium 2,5-dihydroxybenzoate was prepared by dissolving the powder of gentisic acid in the water solution of sodium hydroxide in a stoichiometric ratio (1:1). Water solution of copper or cadmium chlorides was added to aqueous solution of sodium gentisate in a stoichiometric ratio (1:2). The obtained precipitates were filtered off and washed with distilled water and then dried several hours at about 65 °C. The precipitate of cadmium gentisate was water-soluble but copper gentisate was insoluble in water.

References:

Regulska;Kalinowska;Wojtulewski;Korczak;Sienkiewicz-Gromiuk;Rza̧czyńska;Świsłocka;Lewandowski [Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy,2014,vol. 132,p. 713 - 725]