Abstract

Vapor pressures of solid antimony tribromide were measured by the torsion—effusion technique. The values obtained can be expressed by the equation log P(atm) = (9.3 ± 1.3) − (4.4 ± 0.5)/ T in the temperature range 324–368 K. The standard heat of vaporization was derived by second- and third-law treatment of the data and compared with values reported in the literature. The value Δ H 0 vap (298 K) = 19.5 ± 0.5 kcal mole −1 was derived.

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