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Crystal data for ferric molybdate: Fe 2 (MoO 4 ) 3
Author(s) -
Massarotti V.,
Flor G.,
Marini A.
Publication year - 1981
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889881008716
Subject(s) - molybdate , monoclinic crystal system , orthorhombic crystal system , stoichiometry , ferric , crystallography , phase (matter) , crystal (programming language) , crystal structure , chemistry , materials science , inorganic chemistry , analytical chemistry (journal) , mineralogy , organic chemistry , computer science , programming language
Indexed powder patterns of the monoclinic phase, stable at room temperature, and of the orthorhombic phase, stable for T > 786 K, are given. The cell dimensions are: a = 15.737 (8), b = 9.231 (5), c = 18.224 (9) Å, β = 125.46 (2)° at 295 K; a = 9.330 (3), b = 12.868 (5), c = 9.242 (3) Å at 818.6 K. Linear equations describing the thermal expansion of the two phases of ferric molybdate are reported. To verify if ferric molybdate can incorporate excess MoO 3 , measurements on non‐stoichiometric samples were also made: no evidence of the presence of excess MoO 3 was found.