A revised experimental protocol for implementing the actinometry method with the Reinecke’s salt

Robbie Radjagobalou (1, 2) , Jean-François Blanco (1) , Victoria Dias da Silva Freitas (1) , Caroline Supplis (3) , Fabrice Gros (3) , Odile Dechy-Cabaret (2) , Karine Loubiere (1)

1 LGC - Laboratoire de Génie Chimique
2 LCC - Laboratoire de chimie de coordination
3 IP - Institut Pascal

The present short note aims at proposing a revised experimental protocol to implement the actinometry method with Reinecke’s salt. It consists in substituting - for the dosing of the thiocyanate anions produced - perchloric acid (HClO4) by nitric acid (HNO3) - the latter being carefully chosen regarding the chemical equilibria occurring in the aqueous medium and the moderate risks of HNO3. This substitution has been rigorously validated by carrying out the experiments in a dedicated torus batch photoreactor enabling simple treatment of experimental results from a one-dimensional model.

Mots clés: Actinometry; Reinecke’s salt; Nitric acid; Photoreactor

Domaines: Génie chimique; Génie des procédés

Robbie Radjagobalou, Jean-François Blanco, Victoria Dias da Silva Freitas, Caroline Supplis, Fabrice Gros, et al.. A revised experimental protocol for implementing the actinometry method with the Reinecke’s salt. Journal of Photochemistry and Photobiology A: Chemistry, 2019, 382, pp.111934. ⟨10.1016/j.jphotochem.2019.111934⟩. ⟨hal-02177175⟩