View More View Less
  • 1 Faculté de Médecine et de Pharmacie Laboratoire de Chimie Physique Place Saint-Jacques F-25030 Besançon Cedex France
  • | 2 Faculté de Pharmacie Laboratoire de Chimie Minérale Avenue de l'Observatoire F-75006 Paris France
  • | 3 Faculté de Pharmacie Laboratoire de Chimie Physique 2bis, Bd Tonnellé F-37042 Tours Cedex France
Restricted access

Abstract  

A theoretical temperature-specific volume-molar fraction (T-v-x) phase diagram of the binary systemA-H2O presenting a hydrateH with congruent melting is studied. The phase diagram is divided into two subsystems by the one-component phase diagram of the hydrateH. The eutectic invariant planes which occur in both subsystems are described. The relationships between the invariants are given. Isochoric and isoplethal theoretical sections are given. The one-component phase diagram of the hydrateH is described. It is pointed out that the triple line solid-liquid-vapour which relates the congruent melting is not necessarily perpendicular to the molar fraction axis. The means that the three phases, solid, liquid and vapour, have not necessarily the same composition. TheT-v-x representation gives an explanation to the deviation between the maximum of the melting curve and the stoichiometric composition of the hydrate which is often observed in theT-x binary diagramA-H2O.

Manuscript Submission: HERE

  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

For subscription options, please visit the website of Springer.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
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)