Research output: Contribution to journal › Article › peer-review
Thermal Expansion of a Synthetic Analog of Matteuccite NaHSO4·H2O and α-NaHSO4. / Shablinskii, A. P.; Dmitrieva, N. V.; Bubnova, R. S.; Filatov, S. K.; Krzhizhanovskaya, M. G.; Ugolkov, V. L.
In: Glass Physics and Chemistry, Vol. 50, No. 2, 01.04.2024, p. 184-190.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Thermal Expansion of a Synthetic Analog of Matteuccite NaHSO4·H2O and α-NaHSO4
AU - Shablinskii, A. P.
AU - Dmitrieva, N. V.
AU - Bubnova, R. S.
AU - Filatov, S. K.
AU - Krzhizhanovskaya, M. G.
AU - Ugolkov, V. L.
PY - 2024/4/1
Y1 - 2024/4/1
N2 - Abstract: The thermal behavior of aqueous sulfate NaHSO4·H2O and the product of its dehydration α‑NaHS-O4 is studied. The studies are carried out using high temperature X-ray diffraction and complex thermal analysis. Based on the data of three experiments, the temperature, nature, and sequence of phase transformations are established: NaHSO4·H2O(30–50°C) → α-NaHSO4(140–180°C) → Na2S2O7 + Na3H(SO4)2. With increasing temperature increasing in the NaHSO4·H2O structure hinge deformations occur at the level of a chain of NaO3(OH)(H2O)2 polyhedra. The anisotropy of thermal expansion is αmax/αmin = 1.9 for NaHSO-4·H2O and αmax/αmin = 1.3 for NaHSO4.
AB - Abstract: The thermal behavior of aqueous sulfate NaHSO4·H2O and the product of its dehydration α‑NaHS-O4 is studied. The studies are carried out using high temperature X-ray diffraction and complex thermal analysis. Based on the data of three experiments, the temperature, nature, and sequence of phase transformations are established: NaHSO4·H2O(30–50°C) → α-NaHSO4(140–180°C) → Na2S2O7 + Na3H(SO4)2. With increasing temperature increasing in the NaHSO4·H2O structure hinge deformations occur at the level of a chain of NaO3(OH)(H2O)2 polyhedra. The anisotropy of thermal expansion is αmax/αmin = 1.9 for NaHSO-4·H2O and αmax/αmin = 1.3 for NaHSO4.
KW - high temperature X-ray diffraction
KW - phase transformations
KW - sulfates
KW - thermal expansion
UR - https://www.mendeley.com/catalogue/3d24413d-0ac6-3c78-8e4f-22c3855b5271/
U2 - 10.1134/s1087659624600297
DO - 10.1134/s1087659624600297
M3 - Article
VL - 50
SP - 184
EP - 190
JO - Glass Physics and Chemistry
JF - Glass Physics and Chemistry
SN - 1087-6596
IS - 2
ER -
ID: 126749952