Inorganic Solid Phases

CaAl2O4·xH2O (CaAl2[OH]8[H2O]4, T = 388 K) Crystal Structure

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General Information

  • Phase Label(s): CaAl2[OH]8[H2O]4
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: hP90
  • Space Group: 176
  • Phase Prototype: CaAl2[OH]8[H2O]4
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; U.S.A. New York, Brookhaven National Laboratory, National Synchrotron Light Source NSLS, X7B (determination of structural parameters), X-rays, synchrotron; λ = 0.092191 nm (determination of cell and structural parameters), T = 388 K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): hydroxide, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined; temperature dependence studied, Rietveld refinement
  • Sample Detail(s): sample prepared from calcium aluminate, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: CaAl2[OH]8[H2O]4
  • Alphabetic Formula: Al2Ca[H2O]4[OH]8
  • Published Formula: CaAl2O4·xH2O
  • Refined Formula: Al2CaH16O12
  • Wyckoff Sequence: 176,i6h3
  • Z Formula Units: 6
  • Density: ρ = 1.60 Mg·m−3
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Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1927765

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    SpringerMaterials Release 2016.

    Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS

    All Rights Reserved. Version 2016.10.

    Project Coordinator: Shuichi Iwata

    Section-Editor: Karin Cenzual (Crystal Structures)

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