INFRARED SPECTRAL ANALYSIS OF THE IONITE BASED ON DIMETHYLOLCARBAMIDE AND ORTHOPHOSPHORIC ACID AND ITS COMPLEX WITH MERCURY (II) ION. Journal of Universal Science Research, [S. l.], v. 3, n. 5, p. 131–137, 2025. Disponível em: https://universalpublishings.com/~niverta1/index.php/jusr/article/view/11817. Acesso em: 18 may. 2026.