Solubility Curve and Molar Density of DiluteHe3-He4Mixtures

Abstract
The solubility curve has been measured at the saturated vapor pressure down to 0.025°K, and the limiting solubility at absolute zero has been determined to be (6.37 ± 0.05)% He3. Measurements of the density show that at 0°K and small concentration the volume occupied by a He3 atom in solution is 1.284 ± 0.005 times the volume occupied by He4.