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Studies on the Hydroxide and Peroxide of Niobium
Author(s) -
Sathyanarayana D. N.,
Patel C. C.
Publication year - 1967
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19673530114
Subject(s) - niobium , peroxide , hydroxide , hydrogen peroxide , oxygen , chemistry , exothermic reaction , inorganic chemistry , photochemistry , differential thermal analysis , organic chemistry , physics , diffraction , optics
Hydrated niobium peroxide, Nb 2 O 7 · 4 H 2 O 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.