Inorganic salt hydrates as cryoporometric probe materials to obtain pore size distribution

The Journal of Physical Chemistry. B
Dulce Vargas-FlorenciaI Furó

Abstract

The depression of the melting temperature of Zn(NO3)2.6H2O was used to obtain the pore size distributions in controlled pore glasses. Measured by 1H NMR, the average value of the temperature depression DeltaT and the known average pore size yield K=DeltaT.d approximately 116 K.nm as the material-dependent factor for Zn(NO3)2.6H2O in the Gibbs-Thompson equation. The melting temperature is close to room temperature. Hence, this salt hydrate and some related other ones are better materials than water (K approximately 50 K.nm) for cryoporometric studies of systems with hydrophilic pores. The data also provide 46 mN/m for the solid-liquid surface tension of this salt hydrate.

References

Nov 22, 1993·Physical Review Letters·J H StrangeE G Smith
Oct 9, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Rustem Valiullin, István Furó
Feb 21, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Oleg Petrov, István Furó

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Citations

Dec 4, 2010·Journal of the American Chemical Society·Tamara M EggenhuisenKrijn P de Jong
Oct 19, 2006·Journal of Colloid and Interface Science·D Vargas-FlorenciaI Furó
Mar 28, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Dulce Vargas-FlorenciaRobert W Corkery
Mar 28, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Alexander I Sagidullin, Istvan Furó

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