Investigations on the pseudobinary system Bi2Te3/BiBr3

Authors
Petasch, U Oppermann, H
Citation
U. Petasch et H. Oppermann, Investigations on the pseudobinary system Bi2Te3/BiBr3, Z NATURFO B, 54(4), 1999, pp. 487-490
Citations number
15
Categorie Soggetti
Chemistry
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
ISSN journal
09320776 → ACNP
Volume
54
Issue
4
Year of publication
1999
Pages
487 - 490
Database
ISI
SICI code
0932-0776(199904)54:4<487:IOTPSB>2.0.ZU;2-D
Abstract
The phase diagram of the pseudobinary sytem Bi2Te3/BiBr3 was investigated b y DTA, total pressure measurements and X-ray phase analysis. Only BiTeBr ex ists as a ternary phase in this system. The compound melts congruently at 5 26 degrees C. The heat of formation and standard entropy were calculated fr om vapor pressure data: Delta H(BiTeBr, f, 298) = (-30,4 +/- 1,4) kcal/mol; S degrees(BiTeBr, f, 29 8)= (36,2 +/- 2,9) cal/K.mol.