Sompol PrakongpanTsuneji NagaiWiriya LimchalermMahidol UniversityEbara Corporation2018-08-102018-08-101993-01-01Chemical and Pharmaceutical Bulletin. Vol.41, No.5 (1993), 983-98513475223000923632-s2.0-0027183987https://repository.li.mahidol.ac.th/handle/123456789/22564Ferrous compound was used as a free oxygen absorber (FOA). It was prepared from the chemical reaction of ferrous sulfate and sodium hydroxide under nitrogen atmosphere. The condition of reaction was investigated to obtain a product of high absorbing activity. A kinetic study was done when FOA was exposed to the air and the efficacy was tested. © 1993, The Pharmaceutical Society of Japan. All rights reserved.Mahidol UniversityChemistryPharmacology, Toxicology and PharmaceuticsArticleSCOPUS10.1248/cpb.41.983