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Growth of naphthalene crystals from supercritical CO 2 solution
Author(s) -
Tai Clifford Y.,
Cheng ChuenSong
Publication year - 1995
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690411006
Subject(s) - supersaturation , supercritical fluid , nucleation , crystal growth , naphthalene , solubility , kinetics , crystal (programming language) , growth rate , chemistry , chemical engineering , materials science , chemical physics , crystallography , thermodynamics , organic chemistry , physics , geometry , mathematics , quantum mechanics , computer science , programming language , engineering
Abstract The growth phenomena, mechanism, and kinetics of naphthalene crystal from supercritical CO 2 solution were studies by using a single‐crystal technique. Distinct growth features were observed, including the development of individuals from the seeds and the sprouting of plates from the individuals. The surface integration proceeded by two‐dimensional nucleation mechanism at face corners and by subsequent spreading of the nuclei. The measured growth rates as functions of supersaturation and solubility were consistent with the derived growth‐rate equations, based on the corner nucleation mechanism. In comparison with crystal growth from conventional media, the growth of naphthalene crystals from supercritical CO 2 solution is similar to liquid‐solution growth as far as growth mechanism and kinetics are concerned.