Studies on the hydroxide and peroxide of Niobium

Sathyanarayana, D. N. ; Patel, C. C. (1967) Studies on the hydroxide and peroxide of Niobium Zeitschrift fur anorganische und allgemeine Chemie, 353 (1-2). pp. 103-108. ISSN 0044-2313

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Hydrated niobium peroxide, Nb2O7 · 4 H2O having niobium: peroxy oxygen as 1:1, is prepared. The peroxy oxygen is lost at room temperature slowly and continuously. The differential thermal analysis gives an exothermic peak at 190°C due to the disruption of the peroxy group. The infrared spectrum of the peroxide indicates polymeric nature of niobium peroxide and coordinated peroxide, water and hydroxyl groups. A triangular ring structure is suggested for the peroxy niobium group. Niobium hydroxide has also been studied under similar conditions to serve as a reference.

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