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Issue 2, 2016
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Aluminium phosphate behaviour in Na3AlF6–Al2O3 melts: a new insight from in situ high temperature NMR measurements

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Abstract

The effects of aluminium phosphate dissolution on speciation in Na3AlF6–Al2O3 melts was studied. The structural description was performed via multinuclear (17O, 19F, 23Na, 27Al, and 31P) NMR measurements in situ at high temperature (HT) in melts of the Na3AlF6–Al2O3–AlPO4 system. Consistent with our previous findings, the PO43−, AlF52−, Al2OF62−, Al2O2F42−, and (AlF4–O–PO3)4− anions are present in the melt. When AlPO4 is introduced in the melt containing alumina, the formation of Al–O–P linkages become more favorable compared with the system without alumina.

Graphical abstract: Aluminium phosphate behaviour in Na3AlF6–Al2O3 melts: a new insight from in situ high temperature NMR measurements

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Publication details

The article was received on 09 Sep 2015, accepted on 30 Nov 2015 and first published on 21 Dec 2015


Article type: Paper
DOI: 10.1039/C5NJ02416A
Citation: New J. Chem., 2016,40, 1737-1741
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    Aluminium phosphate behaviour in Na3AlF6–Al2O3 melts: a new insight from in situ high temperature NMR measurements

    A. Rakhmatullin, M. Keppert, F. Šimko and C. Bessada, New J. Chem., 2016, 40, 1737
    DOI: 10.1039/C5NJ02416A

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