The Electronic Transition Behavior Cr (III), Fe (III), Fe (II) and Ni (II), Transition Metal Cations In Ammonium Alum-Urea Room Temperature Ionic Liquid. Al-Nahrain Journal of Science, [S. l.], v. 16, n. 3, p. 46–55, 2013. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/576.. Acesso em: 3 may. 2024.