DSC and X-Ray Studies on the Phase Transitions in (NH(4))(3)Li(SO(4))(2)

Triammonium lithium disulfate NH((4))(3)Li(SO(4))(2) was crystallized by evaporating the aqueous solution at room temperature. The phase transition and the crystal structure at room temperature were investigated by means of differential scanning calorimetry (DSC) and single-crystal X-ray diffraction...

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Bibliographic Details
Published in:Ferroelectrics 2009-01, Vol.381, p.201-207
Main Authors: Kurihama, T, Suzuki, Y, Teng, Y.-J., Shimizu, F, Yamaguchi, T
Format: Article
Language:English
Online Access:Get full text
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Summary:Triammonium lithium disulfate NH((4))(3)Li(SO(4))(2) was crystallized by evaporating the aqueous solution at room temperature. The phase transition and the crystal structure at room temperature were investigated by means of differential scanning calorimetry (DSC) and single-crystal X-ray diffraction, respectively. As a result, thermal anomalies relating to phase transitions were observed at 221 K, 286 K and 458 K. At room temperature, NH((4))(3)Li(SO(4))(2) belonged to the monoclinic space group P2 (Z = 2) and had lattice constants of a = 8.78105(5) Aa, b = 5.2823(2) Aa, c = 9.1331(5) Aa, b = 90.0782(9)'. The R factor converged to 0.0477.
ISSN:0015-0193
DOI:10.1080/00150190902877551