Pattanayak, J and Rao, V S and Maiti, Himadri Sekhar (1990) The hydrolysis product of ferric nitrate in sodium-hydroxide. Journal of Materials Science, 25 (4). pp. 2245-2248. ISSN 0022-2461

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The hydrolysis product of ferric nitrate is obtained by adding ferric nitrate solution to a boiling solution of 2.5 N sodium hydroxide. The sample is amorphous to X-rays when heated below 600~ C, but it shows X-ray lines of ~-Fe203 at 650~ C. Thermal analysis of the sample gives an endothermic peak at 80~ and two small exothermic peaks at 280~ and 700 ~ Transmission electron microscopy and infrared spectroscopy confirm the primary particles as a efect form of FeOOH, H20. The defect FeOOH form of the sample converts to the disordered form of Fe203 on further heating around 700 ~ C. The drastic fall in the surface area of the sample beyond 600~ suggests sudden growth of particle size, which is confirmed by a small endothermic peak at 700 ~ C.

Item Type: Article
Subjects: Microstructure and Characterization
Depositing User: Bidhan Chaudhuri
Date Deposited: 02 Mar 2016 09:42
Last Modified: 15 May 2016 13:29

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