DETERMINATION OF FREE ACIDITY IN SULFURIC LIQUORS USING THE OXALATE METHOD: SCOPE, LIMITATIONS, AND VALIDATION. Revista Multidisciplinar do Nordeste Mineiro, [S. l.], v. 18, n. 2, p. 1–19, 2025. DOI: 10.61164/1knf6e79. Disponível em: https://remunom.ojsbr.com/multidisciplinar/article/view/4559. Acesso em: 2 oct. 2025.