Structural evolution of the amorphous solids produced by heating crystalline MgHPO4 • 3H2O

B. C. Sales; B. C. Chakoumakos; L. A. Boatner; J. O. Ramey

doi:10.1557/JMR.1992.2646

Structural evolution of the amorphous solids produced by heating crystalline MgHPO4 • 3H2O

B. C. Sales, B. C. Chakoumakos, L. A. Boatner, J. O. Ramey

Single Crystal Diffraction

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Abstract

The precise structural characteristics of the amorphous solids that are generated during the dehydration of crystalline MgHPO4 • 3H20 (newberyite) are reported. The results show that a dramatic change in the distribution of phosphate anions (i.e., chains of corner-linked PO4 tetrahedra) occurs during the process of dehydration and that anions up to 13 PO4 tetrahedra in length are formed. The distribution of phosphate anions formed at intermediate stages of the dehydration process was found to be in quantitative agreement with the theory of Parks and Van Wazer.

Original language	English
Pages (from-to)	2646-2649
Number of pages	4
Journal	Journal of Materials Research
Volume	7
Issue number	10
DOIs	https://doi.org/10.1557/JMR.1992.2646
State	Published - Oct 1992

Funding

This research was sponsored by the Division of Materials Sciences, United States Department of Energy, under Contract No. DE-AC05-84OR21400 with Martin Marietta Energy Systems, Inc.

Funders	Funder number
Division of Materials Sciences
U.S. Department of Energy	DE-AC05-84OR21400

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AU - Chakoumakos, B. C.

AU - Boatner, L. A.

AU - Ramey, J. O.

PY - 1992/10

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AB - The precise structural characteristics of the amorphous solids that are generated during the dehydration of crystalline MgHPO4 • 3H20 (newberyite) are reported. The results show that a dramatic change in the distribution of phosphate anions (i.e., chains of corner-linked PO4 tetrahedra) occurs during the process of dehydration and that anions up to 13 PO4 tetrahedra in length are formed. The distribution of phosphate anions formed at intermediate stages of the dehydration process was found to be in quantitative agreement with the theory of Parks and Van Wazer.

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Structural evolution of the amorphous solids produced by heating crystalline MgHPO4 • 3H2O

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