How To Wash Iron Filings & Iron Powder For Magnetic Field Displays. To keep magnetic field line displays from getting cloudy its best to wash the iron filings or iron particles in your suspension medium first.
- Put iron filings in a jar,
- add suspension medium (Mineral oil, silicon oil, glycerine etc),
- mix well then let iron settle back down,
- use a magnet to hold the iron back & pour out dirty medium, rinse and repeat as needed,
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