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Updated: Mar 24, 2026
Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures
Published on: June 28, 2017
VISCOSITIES OF CONCENTRATED NaCl-H2O AND Me2SO-NaCl-H2O SOLUTIONS AT SUBZERO TEMPERATURES
Zhang Shaozhi1, Jiang Qing1, Fan Juli2
1Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province, Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou, China.
Background:
Viscosity is an important property of cryoprotectant solutions because it directly influences diffusion and reaction at liquid state.
Objective:
To measure the viscosities of concentrated NaCl-H(2)O and Me(2)SO-NaCl-H(2)O solutions at subzero temperatures down to -50 degree C.
Materials And Methods:
Solution viscosity was measured with a rotary viscometer coupled with a thermostat bath. Two viscosity models, Laliberté model and Williams-Landel-Ferry (WLF) model, were employed in the correlation and prediction.
Results And Conclusion:
The Laliberte model performed well to correlate the viscosities of NaCl- H(2)O solutions measured here and the viscosities of Me(2)SO-H(2)O solutions found in the literature. The parameters obtained were used to predict the viscosities of Me(2)SO-NaCl-H(2)O solutions. The average discrepancy between the calculation and the experimental data was 19.0%. With the WLF model, the average discrepancy between the calculation and the experimental data for ternary solution was 5.4%.
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