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Thermal Expansion of Solvent Mixture question

  1. Feb 10, 2009 #1
    Hello,

    Currently, I am working on a science project involving the creation of silica aerogels through the process of freeze-drying. As a result, i need to experiment with mixtures of solvents with low thermal expansion coefficients (so the crystallization of the solvents will not damage the aerogel matrix) However, i have hit a huge impediment.

    While it is relatively simple to look up the thermal expansion coefficients for a given solvent,

    how would one determine the thermal expansion coefficient for a mixture of solvents? (For example, the thermal expansion coef of a mixture of Tert Butanol and Propanol?)

    Would the coefficient be nearly the same if the solvents were in solid state? (For they will be frozen, then sublimated)
     
  2. jcsd
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