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Solid Reactions in Pyrophyllite‐Nickel (Cobalt) oxide systems. II
Author(s) -
Hassanein M.,
Azzam A. M.
Publication year - 1968
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.19683560514
Subject(s) - pyrophyllite , spinel , nickel , non blocking i/o , cobalt , materials science , nickel oxide , metal , oxide , aluminium , solid state , inorganic chemistry , powder diffraction , chemistry , metallurgy , mineralogy , crystallography , catalysis , organic chemistry
The reactions between pyrophyllite, (OH) 2 Al 2 Si 4 O 10 , and NiO as well as CoO were carried out in the solid state at 750–950°C. The nature of the reaction products was investigated spectrophotometrically and by X‐ray diffraction powder method. Generally, the formation of the corresponding metal aluminium spinel M II Al 2 O 4 (M II = Ni, Co) together with other phases were observed. The results are discussed and compared with previous work( 1−4 ).