Drug interactions during storage of mixtures of the antacid group. III. Effect of relative humidity on structural changes in mixtures aluminum hydroxide gel and magnesium hydroxide in the solid phase
Pawlaczyk, J.; Lutka, A.
Acta Poloniae Pharmaceutica 46(2): 170-173
1989
ISSN/ISBN: 0001-6837 PMID: 2631571 Document Number: 339830
Mixtures of A1(OH)3 gel and Mg(OH)2 were stored for 14 months in the solid phase in chambers with relative air humidity of 35%, 55%, 76% and 92%. IR spectra of the stored mixtures were measured. In mixtures stored at relative air humidity of 35% there were found no changes in IR spectra, while the mixtures stored at relative air humidity of 92% proved to exhibit IR spectra characteristic for hydrotalcite.