Enviar artigo por via de e-mail Thermal Expansion and Phase Transitions in Na3H(SO4)2 Sulfate in the Low-Temperature Range
- Autores: Dmitrieva N.V.1, Bubnova R.S.1,2, Filatov S.K.1, Shablinskii A.P.1,2, Krzhizhanovskaya M.G.2
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Afiliações:
- Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
- St. Petersburg State University
- Edição: Volume 45, Nº 5 (2019)
- Páginas: 395-397
- Seção: Short Communications
- URL: https://journals.rcsi.science/1087-6596/article/view/217373
- DOI: https://doi.org/10.1134/S1087659619050043
- ID: 217373
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Resumo
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.
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Sobre autores
N. Dmitrieva
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: rimma_bubnova@mail.ru
Rússia, St. Petersburg, 199034
R. Bubnova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences; St. Petersburg State University
Autor responsável pela correspondência
Email: rimma_bubnova@mail.ru
Rússia, St. Petersburg, 199034; St. Petersburg, 199034
S. Filatov
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: rimma_bubnova@mail.ru
Rússia, St. Petersburg, 199034
A. Shablinskii
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences; St. Petersburg State University
Email: rimma_bubnova@mail.ru
Rússia, St. Petersburg, 199034; St. Petersburg, 199034
M. Krzhizhanovskaya
St. Petersburg State University
Email: rimma_bubnova@mail.ru
Rússia, St. Petersburg, 199034
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