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Titolo:
PHYSICAL-CHEMISTRY OF ORGANIC EUTECTICS
Autore:
RAI US; RAI RN;
Indirizzi:
BANARAS HINDU UNIV,DEPT CHEM VARANASI 221005 UTTAR PRADESH INDIA
Titolo Testata:
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
fascicolo: 3, volume: 53, anno: 1998,
pagine: 883 - 893
SICI:
0368-4466(1998)53:3<883:POOE>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALPHA-NAPHTHOL; ADDITION-COMPOUNDS; BINARY; SYSTEM; SOLIDIFICATION; AMINOPHENOL; BENZIDINE; ALLOYS;
Keywords:
GROWTH KINETICS; MICROSTRUCTURE; ORGANIC EUTECTICS; PHASE DIAGRAM; THERMOCHEMISTRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
U.S. Rai e R.N. Rai, "PHYSICAL-CHEMISTRY OF ORGANIC EUTECTICS", JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 53(3), 1998, pp. 883-893

Abstract

Phase diagrams of urea-alpha-naphthol and urea-benzoic acid systems, determined by the thaw-melt method, show the formation of simple eutectic in each case. The growth velocity data, determined at different undercooling (Delta T) by observing the rate of movement of interface ina capillary, obey the Hillig-Turnbull equation, v=u(Delta T)(n), where u and n are constants depending on the nature of the materials. Using enthalpy of fusion, undercooling (Delta T) and melting point data, entropy of fusion, interfacial energy, enthalpy of mixing, critical radius size and excess thermodynamic functions were calculated. The microstructural investigations give characteristic features of the eutectics.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 07:19:41