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R. Frost Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences Brisbane Queensland Australia 4001 GPO Box 2434 Brisbane Queensland Australia 4001 GPO Box 2434

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A. Musumeci Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences Brisbane Queensland Australia 4001 GPO Box 2434 Brisbane Queensland Australia 4001 GPO Box 2434

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J. Kloprogge Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences Brisbane Queensland Australia 4001 GPO Box 2434 Brisbane Queensland Australia 4001 GPO Box 2434

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M. Weier Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences Brisbane Queensland Australia 4001 GPO Box 2434 Brisbane Queensland Australia 4001 GPO Box 2434

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M. Adebajo Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences Brisbane Queensland Australia 4001 GPO Box 2434 Brisbane Queensland Australia 4001 GPO Box 2434

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W. Martens Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences Brisbane Queensland Australia 4001 GPO Box 2434 Brisbane Queensland Australia 4001 GPO Box 2434

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Abstract  

The thermal decompositions of hydrotalcites with hexacyanoferrate(II) and hexacyanoferrate(III) in the interlayer have been studied using thermogravimetry combined with mass spectrometry. X-ray diffraction shows the hydrotalcites have a d(003) spacing of 11.1 and 10.9 which compares with a d-spacing of 7.9 and 7.98 for the hydrotalcite with carbonate or sulphate in the interlayer. XRD was also used to determine the products of the thermal decomposition. For the hydrotalcite decomposition the products were MgO, Fe2O3 and a spinel MgAl2O4. Dehydration and dehydroxylation take place in three steps each and the loss of cyanide ions in two steps.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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