Fig. 1From: Hidden in plain sight: revisiting the synthesis, characterisation, degradation and the intricate relationship between Scheele’s green and Emerald greenArsenite and copper sulphate speciation at different pH. Dissociation constants for copper from Davies et al. [14] and for arsenic, Jekel et al. [15]. Dashed line marks pH 9.3 as suggested by Saxena and Bhatnagar [11] to give a single productBack to article page