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On the dehydration and structural deformations of desmine upon heating

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    The process of dehydration of desmine occurs continuously within a broad temperature interval (from 0 to 470°) and is characterized by a clearly pronounced nonuniformity of the variation, which is evidence of a somewhat different bond energy of the water molecules liberated in different temperature intervals to the layers of aluminumsilicon-oxygen tetrahedra and the cations in the structure of desmine.

  2. 2.

    Dehydration of desmine produces a compression of its lattice, especially strong in the direction of the b axis, i.e., in the direction perpendicular to the plane of the layers of the framework.

  3. 3.

    Rehydration of desmine occurs comparatively rapidly and readily. Even the entirely dehydrated material is capable of reabsorbing two-thirds of its original amount of water. Rehydration of dehydrated desmine leads to a certain expansion of its lattice, although no complete restoration of the structure is observed in this case.

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Literature cited

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Authors and Affiliations

  1. I.V. Grebenshchikov Institute of Silicate Chemistry, Academy of Sciences of the USSR, USSR

    É. N. Korytkova & A. D. Fedoseev

Authors
  1. É. N. Korytkova
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  2. A. D. Fedoseev
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Additional information

The article is published on the basis of the resolution of the Conference of Editors-in-Chief of the journals of the Academy of Sciences of the USSR from July 12, 1962,as the dissertation work of É. N. Korytkova.

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya No. 11, pp. 1925–1930, November, 1964

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Korytkova, É.N., Fedoseev, A.D. On the dehydration and structural deformations of desmine upon heating. Russ Chem Bull 13, 1835–1838 (1964). https://doi.org/10.1007/BF00844472

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  • DOI: https://doi.org/10.1007/BF00844472

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