Paraguassu-Chaves, C. A.; Faria, C. J. P. de; Brondani, F. M. M.; Geron, V. L. M. G.; Junior, N. P. S.; Calderaro, I. F. N.; Almeida, F. M. de; Neto, L. S. da L. Comparative Study of the Efficiency of Sodium Hydroxide, Sodium Hypochlorite and Sodium Chloride As Extractors of Residual Silver From X-Ray Plates and Graphical Effluents by the Volhard Method. ijaers 2019, 6 (2).