Structural analysis of molten K2SO4

Michihiro Miyake; Kiyoshi Okada; Shin ichi Iwai; Hideo Ohno; Kazuo Furukawa

doi:10.1039/F19797501169

Structural analysis of molten K₂SO₄

Michihiro Miyake, Kiyoshi Okada, Shin ichi Iwai, Hideo Ohno, Kazuo Furukawa

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Abstract

The structure of molten K₂SO₄ has been investigated using the radial distribution function together with the correlation method based on X-ray scattering intensity data collected at ≈ 1150°C. The SO₄ tetrahedron which exists in the crystalline state of K ₂SO₄ is shown to be preserved in the molten state. The most likely model for the short-range arrangement is that of four near-neighbour potassium atoms situated around the SO₄ tetrahedron. One of the four potassium atoms practically occupies the corner-site and the others occupy the edge-sites. The nearest-neighbour K-O and K-S distance are r = 2.80 and 3.38 Å, respectively. The most likely model for the long-range arrangement is about thirteen K₂SO₄ units situated around one K ₂SO₄ unit with an average inter-unit distance of 7.0 Å.

Original language	English
Pages (from-to)	1169-1178
Number of pages	10
Journal	Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
Volume	75
DOIs	https://doi.org/10.1039/F19797501169
Publication status	Published - Dec 1 1979
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)

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title = "Structural analysis of molten K2SO4",

abstract = "The structure of molten K2SO4 has been investigated using the radial distribution function together with the correlation method based on X-ray scattering intensity data collected at ≈ 1150°C. The SO4 tetrahedron which exists in the crystalline state of K 2SO4 is shown to be preserved in the molten state. The most likely model for the short-range arrangement is that of four near-neighbour potassium atoms situated around the SO4 tetrahedron. One of the four potassium atoms practically occupies the corner-site and the others occupy the edge-sites. The nearest-neighbour K-O and K-S distance are r = 2.80 and 3.38 {\AA}, respectively. The most likely model for the long-range arrangement is about thirteen K2SO4 units situated around one K 2SO4 unit with an average inter-unit distance of 7.0 {\AA}.",

author = "Michihiro Miyake and Kiyoshi Okada and Iwai, {Shin ichi} and Hideo Ohno and Kazuo Furukawa",

year = "1979",

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doi = "10.1039/F19797501169",

language = "English",

volume = "75",

pages = "1169--1178",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Structural analysis of molten K2SO4

AU - Miyake, Michihiro

AU - Okada, Kiyoshi

AU - Iwai, Shin ichi

AU - Ohno, Hideo

AU - Furukawa, Kazuo

PY - 1979/12/1

Y1 - 1979/12/1

N2 - The structure of molten K2SO4 has been investigated using the radial distribution function together with the correlation method based on X-ray scattering intensity data collected at ≈ 1150°C. The SO4 tetrahedron which exists in the crystalline state of K 2SO4 is shown to be preserved in the molten state. The most likely model for the short-range arrangement is that of four near-neighbour potassium atoms situated around the SO4 tetrahedron. One of the four potassium atoms practically occupies the corner-site and the others occupy the edge-sites. The nearest-neighbour K-O and K-S distance are r = 2.80 and 3.38 Å, respectively. The most likely model for the long-range arrangement is about thirteen K2SO4 units situated around one K 2SO4 unit with an average inter-unit distance of 7.0 Å.

AB - The structure of molten K2SO4 has been investigated using the radial distribution function together with the correlation method based on X-ray scattering intensity data collected at ≈ 1150°C. The SO4 tetrahedron which exists in the crystalline state of K 2SO4 is shown to be preserved in the molten state. The most likely model for the short-range arrangement is that of four near-neighbour potassium atoms situated around the SO4 tetrahedron. One of the four potassium atoms practically occupies the corner-site and the others occupy the edge-sites. The nearest-neighbour K-O and K-S distance are r = 2.80 and 3.38 Å, respectively. The most likely model for the long-range arrangement is about thirteen K2SO4 units situated around one K 2SO4 unit with an average inter-unit distance of 7.0 Å.

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Structural analysis of molten K₂SO₄

Abstract

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