M Samira Rabie
Articles written in Journal of Chemical Sciences
Volume 96 Issue 5 March 1986 pp 315-320 Inorganic and Analytical
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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