Upon addition of hydrogen peroxide to Rochelle's salt (sodium potassium tartrate), the hydrogen peroxide decomposes and tartaric acid is oxidized. This reaction proceeds very slowly at room ...

The pink color of the regenerated catalyst is visible upon completion of the reaction. 30g potassium sodium tartrate in 400mL distilled water. 50mL of 0.4M CoCl2 (or 95.2g CoCl2.H2O/L) 30mL of 30% ...