Thermal Expansion and Phase Transitions in Na3H(SO4)2 Sulfate in the Low-Temperature Range

Thermal Expansion and Phase Transitions in Na₃H(SO₄)₂ Sulfate in the Low-Temperature Range

Research output: Contribution to journal › Article › peer-review

DOI

https://doi.org/10.1134/S1087659619050043
Final published version

The thermal behavior of Na₃H(SO₄)₂ is studied in the temperature range –180..220°C in a pre-vacuum. At 180°C, the compound decomposed into a mixture of phases: Na₂SO₄ (Cmcm), Na₂SO₄ (P6₃/mmc), Na₂SO₄ (Fddd), and Na₂S₂O₇. The maximal thermal expansion was observed near the α₃₃ axis. The anisotropy of thermal expansion sharply decreased together with the increase in temperature.

Original language	English
Pages (from-to)	395-397
Number of pages	3
Journal	Glass Physics and Chemistry
Volume	45
Issue number	5
DOIs	https://doi.org/10.1134/S1087659619050043
State	Published - 18 Oct 2019

Research areas

high temperature X-ray diffraction, phase transitions, sulfates, thermal expansion

Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

ID: 49490633