Stapelfeldt, Danielle Marques de AraujoYoshida, Maria IreneCarvalho, Cornélio de Freitas2017-05-232017-05-232009STAPELFELDT, D. M. de A.; YOSHIDA, M. I.; CARVALHO, C. de F. Colorimetric determination of ether amine greases utilized in the flotation of iron ore. Journal of Analytical Chemistry, Moscow, v. 64, p. 390-392, 2009. Disponível em: <https://link.springer.com/article/10.1134/S1061934809040121>. Acesso em: 20 abr. 2017.1608-3199http://www.repositorio.ufop.br/handle/123456789/7793Ether amine greases are commonly used in the flotation of iron ore, and after use are discarded in the tailings dams. The aim of this work was to quantify a commercial ether amine using the bromocresol green dye in chloroform. The statistical data obtained show that the method is characterized by satisfactory accuracy and precision with a detection limit below 1 mg/L. The recovery obtained was 98.53%, in average. In addition, the method presented here provided a recovery of ether amine contained in effluents and solids higher than 98%.en-USrestritoArtigo publicado em periodicohttps://link.springer.com/article/10.1134/S1061934809040121https://doi.org/10.1134/S1061934809040121