Determination of the Magnetic Susceptibilities of Liquids Dissolving Oxygen by the Viscometer Method and a New-Type Linear Law of Susceptibility

The magnetic susceptibilities of a number of liquids dissolving oxygen have been determined by an improved viscometer method at 298.15 K and 105.3 kPa; it has been confirmed that they are nicely expressed using the Wiedemann’s additivity law, and it is found that they are perfectly linear with the volume fraction of oxygen in the atmosphere in contact with liquids: a new-type law of susceptibility. It is shown that the effects of dissolved air are not canceled out unless the susceptibility of an oxygen-free liquid is used as the reference value, even when the solubilities of oxygen in the sample and the reference liquids are equal, causing a real error to an extent as much as 1.7%.