Kulisiewicz L, Kowalczyk W, Baars A, Delgado A (2007)
Publication Type: Journal article
Publication year: 2007
Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles / Taylor & Francis
Book Volume: 27
Pages Range: 291-297
Journal Issue: 2
URI: http://www.tandfonline.com/doi/pdf/10.1080/08957950701389522
DOI: 10.1080/08957950701389522
A visualization of pressure-shift freezing of 0.7w/w sucrose solutions was carried out at three temperatures 268, 253 and 235K by release of pressure from 200MPa to atmospheric value. Furthermore, pressure-shift freezing at 268K and additionally pressure-shift thawing was carried out for a solution of 0.2 sucrose mass fraction. The solid phase observed at 268K in the case of solution with 0.2w/w sucrose fraction was ice I. The phase changes of 0.7w/w sucrose solutions at 253K and 235K resulted in formation of spherical solids which are hypothesized to be eutectics, i.e. crystals with structure containing sucrose hydrates and water. The visual evaluation revealed differences in size and distribution of spherical crystals. The solids formed at 235K were more numerous, more homogenously distributed and finally smaller than those observed at 253K. It is explained by the higher supercooling of the solution in the former case, which provided higher driving force for nucleation and crystal growth.
APA:
Kulisiewicz, L., Kowalczyk, W., Baars, A., & Delgado, A. (2007). Visualization of pressure-shift freezing and thawing of concentrated aqueous sucrose solutions. High Pressure Research, 27(2), 291-297. https://dx.doi.org/10.1080/08957950701389522
MLA:
Kulisiewicz, Leszek, et al. "Visualization of pressure-shift freezing and thawing of concentrated aqueous sucrose solutions." High Pressure Research 27.2 (2007): 291-297.
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