DOI > 10.5291/ILL-DATA.5-11-404

This proposal is publicly available since 06/06/2018

Title

Determination of the hydrogen positions in the sulphate mineral Bloedite

Abstract

High-pressure synchrotron X-ray experiments on the mineral Bloedite have shown that dehydration does not occur under pressure, and that rather surprisingly, there is no phase transition up to 14GPa. This mineral may be widely distributed in the crust of icy satellites, such as the satellites of Jupiter. We wish to determine accurately the H-atom positions, and whether they are ordered or disordered, in this intriguing mineral, at room temperature and at lower temperatures, and for this we ask for 6 days on D19.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

KATERINOPOULOU Anna; Balic-Zunic Tonci; COMODI Paola and MASON, Sax A.. (2013). Determination of the hydrogen positions in the sulphate mineral Bloedite. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-11-404

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Metadata

Experiment Parameters

  • Environment temperature

    20-295K
  • Experiment energy

    0.9-1.25Ang

Sample Parameters

  • Formula

    • NaMg(SO4)2. 4H2O
  • Consistence

    single crystal
  • Mass

    50
  • Size

    27
  • Surface

    54
  • Space

    P21/a
  • Unit cell A

    11.126
  • Unit cell B

    8.242
  • Unit cell C

    5.539
  • Alpha

    90
  • Beta

    100.84
  • Gamma

    90
  • Container

    mounted V pin