Rate controlling processes in solvent-mediated phase transformations

Autor:	D.E. Sadler, R.J. Davey, D. M. Mcewan, P.T. Cardew
Rok vydání:	1986
Předmět:	Plant growth Chemistry Kinetics Direct observation Thermodynamics Condensed Matter Physics Transformation (music) Inorganic Chemistry Solvent Crystallography Metastability Phase (matter) Materials Chemistry Dissolution
Zdroj:	Journal of Crystal Growth. 79:648-653
ISSN:	0022-0248
DOI:	10.1016/0022-0248(86)90532-4
Popis:	Transformations between solid phases in contact with a solvent can proceed by a mechanism in which crystals of the stable phase grow and those of the metastable phase dissolve. The kinetics of such a transformation are determined by the relative rates of dissolution and growth of the two phases. Measurement of the concentration profile in solution during a transformation is the best means of quantifying these kinetics. In this paper two solvent-mediated phase transformations, one for a dyestuff, the other for paclobutrazol, a plant growth regulator manufactured by ICI, have been studied. A combination of direct observation of the solid phases and measurement of the solution concentrations with time during the transformations allowed the kinetics to be described in terms of the relative rates of dissolution and growth of the metastable and stable phases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b019314eeeebf779b90d6789764f1493 https://doi.org/10.1016/0022-0248(86)90532-4 Zobrazit plný text záznamu