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Why magnet can attract liquid oxygen but not aluminium?both paramagnet

  1. Jul 29, 2013 #1
    A magnet only attract ferromagnetic material because they have magnetic domains which will align to form magnetic dipole when external magnetic field applied.
    Paramagnet dont have domains. Due to the presence of some unpaired electron, they will cause the realignment of the electron path when external magnetic field applied.
    So they should be attracted by magnet also, eg liquid oxygen.
    But why not aluminium ? is that because of the temperature or the mass of the paramagnetic material?
    Thank you
     
  2. jcsd
  3. Jul 29, 2013 #2

    davenn

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    hi there

    interesting question .... I was unaware that LOX was paramagnetic till now
    here's one link to a site showing some easy to do experiments.

    Yes it is to do with the unpaired electrons see this site

    Aluminium is deemed paramagnetic see this link to Wiki

    cheers
    Dave
     
  4. Jul 29, 2013 #3
    Temperature has a direct bearing on paramagnetism. See Curie's law.
     
  5. Jul 30, 2013 #4

    Andy Resnick

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    2016 Award

    Are you perhaps confusing paramagnetism with Eddy currents?
     
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