Lambda Transition in Liquid Sulfur

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Science  22 Dec 1967:
Vol. 158, Issue 3808, pp. 1567-1569
DOI: 10.1126/science.158.3808.1567


Density measurements on liquid sulfur near the transition at 160°C show a logarithmic singularity and discontinuous density. The transition shows the kinetic behavior of a zero-order reaction. The transition is expected to have a latent heat characteristic of a first-order phase transition but is of the cooperative nature associated with second-order transitions such as the lambda point in liquid helium.