The magnetic mass susceptibilities of magnesium and its compounds

Abstract

The previous literature concerning the magnetic mass susceptibilities of magnesium and its compounds is scanty and often only correct to two figures (giving an error of about 5%). Measurements have been carried out over a range of some 35 highly purified compounds of magnesium in the solid state and the resulting mass susceptibility values have been compared with existing values. The ionic susceptibility of magnesium has been determined. The compounds have been grouped according to the valency of the negative radical and the ionic susceptibility has been found to differ with the groups, due to the valency of the negative radical having a constitutive effect. From the ionic susceptibility, the value of the mean square radius of the ion has been determined, and the value has been compared with theoretical values calculated by various methods. The Additivity Law of the mass susceptibilities of the constituent components of the compounds, has been shown to hold good in some cases, and where deviations occur, suggestions for explanation have been put forward.