Determination of the Volume and Density of the Test Mass at T = 298 K and T = 77 K
3:47
Preparation of the Initial Liquid N2-Ar Mixture
4:53
Measuring and Adjusting the Density of the Initial N2-Ar Mixture
5:39
Cooling Drops of Sample Solution
6:48
Assessment of the State and Determination of the Density of the Sample
7:55
Results: Determination of Acqueous Glass Densities at Cryogenic Temperatures
8:47
Conclusion
TRANSCRIÇÃO
The overall goal of this experiment is to determine the glass or vitreous state densities of aqueous solutions at cryogenic temperatures. This method can help answer key questions in the fields of Cryobiology and Cryocrystallography, such as, how
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A protocol for determining the vitreous phase densities of micro- to pico-liter size drops of aqueous mixtures at cryogenic temperatures is described.