Phase transition in cryoprotective system water-dimethyl sulphoxide during cooling-thawing

  • A. T. Khodko
Keywords: cryoprotectors, phase transitions, gel formation, crystallization, glass transition, dispersed system

Abstract

By visual observation, organoleptically with indentor, microscopy of thawing process water – dimethyl sulfoxide system in 1,3,10 % volume concentration in comparison with bidistilled water in the same conditions there has been shown, that in all cases by one-time cooling (– 12 ºС) the amorphous jelly-like high concentrated emulsion-gel system occurs. By frequent cycles of cooling-thawing and – 12 ºC storing in 10-% Me2SO on isotonic solution NaCl there has been noted the hardness that can be explained by one of crystallization phases in the system.

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Published
2014-10-28
Cited
How to Cite
Khodko, A. T. (2014). Phase transition in cryoprotective system water-dimethyl sulphoxide during cooling-thawing. Kharkiv University Bulletin. Chemical Series, (24), 118-125. https://doi.org/10.26565/2220-637X-2014-24-14