The Magnetic Susceptibilities of the Vapors of Benzene and Carbon Tetrachloride

Abstract

An apparatus has been constructed for measuring at elevated temperatures and at independently controlled pressures the magnetic susceptibility of vapors of substances which are normally in the liquid or solid state. Besides greatly increasing the range of substances for which such measurements can be made, the measurement at elevated temperatures is believed to permit considerably greater accuracy than has been attained previously in the susceptibility measurements on vapors. Determinations of the susceptibilities of the vapors of benzene and carbon tetrachloride have been carried out at 110°C. The extreme limits of uncertainty in the results are estimated to be 3 percent. The values found for the mass susceptibilities of the vapors are in very close agreement with values which have been obtained for the liquids.