• Hajjar Balkees

      Articles written in Journal of Chemical Sciences

    • Infrared study of FeO·OH→Fe2O3 thermal transformation

      M Samira Rabie Hajjar Balkees

      More Details Abstract Fulltext PDF

      Infrared absorption spectroscopy has been applied for the identification of the minerals associated with natural goethite (α-FeO·OH) from Saudi Arabia. The thermal transformation of natural goethite as well as the effects of the presence of the associated minerals on the reaction products were investigated. The results revealed that at 300°C protohematite is formed which at 600°C is slightly crystallized. Further recrystallization and hematite formation takes place at 1000°C. It was also found that the presence of other minerals found in goethite samples has no effect on the reaction products.

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