ALGUACIL, F. J. Study of the structure of H2SO4-amine Primene 81R and Fe(III)-amine Primene 81R sulphate compounds by infrared spectroscopy. Revista de Metalurgia, [S. l.], v. 35, n. 4, p. 249–254, 1999. DOI: 10.3989/revmetalm.1999.v35.i4.631. Disponível em: https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/631. Acesso em: 29 apr. 2024.