Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 44: Issue 3
Phase equilibrium in the system LaP3O9−NaPO3−P2O5 The new compounds NH4LaP4O12 and La4(P2O7)3
Author: J. Kropiwnicka 1
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  • 1 Technological Institute of Chemical and Food Industry, Komandorska 118, 53-326 Wrocław, Poland
Pages:
725–731
Online Publication Date:
06 Jul 2007
Publication Date:
01 Mar 1995
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02636290
Keywords:
NH4LaP4O12; La4(P2O7)3; phase diagram; system LaP3O9−NaPO3−P2O5
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Abstract  

The phase diagram of the ternary system LaP3O9−NaPO3−P2O5 was constructed through the use of a new compound NH4LaP4O12. Ammonium lanthanum phosphate NH4LaP4O12 crystallizes in the monoclinic system, space group C2/c, witha=7.941(4)Å,b=12.645(13)Å,c=10.702(9)Å, γ=110.00(5). The compound melts incongruently at 1198°C. Lanthanum pyrophosphate melts incongruently at 1160°C.

Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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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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