1973 Volume 46 Issue 10 Pages 3004-3007
The adiabatic compressibility vs. concentration curves in aqueous solutions of t-butyl alcohol (t-Bu) over a certain temperature range have a common intersection at a fixed concentration (μcβ). The sound absorptions of solutions are nearly constant and are independent of the concentration up to a concentration (μiα) nearly the same as the μcβ. On the basis of the value of μcβ(≅μiα), the properties and the dissolved state of t-Bu in liquid water discussed in terms of the liquid clathrate hydrate model. At this concentration, the liquid clathrate hydrate of t-Bu. consists of 18-hedron, containing 32 water molecules for each t-Bu molecule. For higher concentrations than μcβ, the breakdown of the liquid clathrate hydrate by the addition of excess t-Bu occurs, accompanied by an increase in the number of clusters.
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