Phase formation in the system involving silver, magnesium, and indium molybdates

The subsolidus region of the Ag 2 MoO 4 -MgMoO 4 -In 2 (MoO 4 ) 3 ternary salt system has been studied by X-ray powder diffraction. The formation of new compounds Ag 1 − x Mg 1 − x In 1 + x (MoO 4 ) 3 (0 ≤ x ≤ 0.6) and AgMg 3 In(MoO 4 ) 5 has been established. The unit cell parameters of solid-solut...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2010, Vol.55 (12), p.1965-1969
Main Authors: Kotova, I. Yu, Korsun, V. P.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Crystallization
Diffraction
Indium
Inorganic Chemistry
Magnesium
Molybdates
Physicochemical Analysis of Inorganic Systems
Sodium
Unit cell
X-rays
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Summary:The subsolidus region of the Ag 2 MoO 4 -MgMoO 4 -In 2 (MoO 4 ) 3 ternary salt system has been studied by X-ray powder diffraction. The formation of new compounds Ag 1 − x Mg 1 − x In 1 + x (MoO 4 ) 3 (0 ≤ x ≤ 0.6) and AgMg 3 In(MoO 4 ) 5 has been established. The unit cell parameters of solid-solution samples have been determined. The Ag 1 − x Mg 1 − x In 1 + x (MoO 4 ) 3 phase of variable composition has a NASICON-type structure (space group R c ) AgMg 3 In(MoO 4 ) 5 is isostructural to sodium magnesium indium molybdate of the same formula unit and crystallizes in triclinic system (space group P , Z = 2) with the following unit cell parameters: a = 7.0374(5) Å, b = 17.932(1) Å, c = 6.9822(4) Å, α = 87.309(6)°, β = 100.832(6)°, γ = 92.358(6)°. The compounds Ag 1 − x Mg 1 − x In 1 + x (MoO 4 ) 3 and AgMg3In(MoO 4 ) 5 are thermally stable up to 960 and 1030°C, respectively.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023610120247