A Simple Cryostat

Abstract

A simple all-glass cryostat, based on the LeRoy low-temperature fractionating column, is described. It can be used for the separation, purification, and the determination of vapour pressures of volatile and gaseous compounds in the temperature range -196 °C to room temperature. The vapour pressures of boron trimethyl have been remeasured and the reliability of Stock's data is confirmed.