The Magnetic Susceptibility of Oxygen and Nitric Oxide at Low Field Strengths

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Abstract
The Rankine magnetic balance has been used to determine the magnetic susceptibility of oxygen and nitric oxide at atmospheric pressure in a field of about 15 oersteds. The mass susceptibility of water at 20°C is assumed to be −0.7200×10−6. The mean of ten separate measurements on oxygen gives (106.3±0.2)×10−6 for the mass susceptibility, with an average deviation from the mean of 0.9×10−6. The value of χMT is 0.997±0.002; the average deviation from the mean being 0.008. The mean of six separate measurements on nitric oxide gives 47.2×10−6 for the mass susceptibility, and 0.0590×10−6 for the volume susceptibility, with an average deviation from the mean of 0.6×10−6 and 0.0007×10−6, respectively.