Mercury
Mercury is a toxic substance that can result in severe health effects. Therefore, all mercury spills, including droplets of mercury from a broken laboratory thermometer, need to be cleaned up following safe and environmentally sound procedures.

 

The following are some prudent practices when using mercury:

  • Always read the MSDS for mercury before using it.
  • Ensure lab has the appropriate spill clean-up materials.
  • Find an alternative to using mercury. (Ex. Use alcohol thermometers instead of mercury ones.)
    • Contact REHS to switch out mercury thermometers with alcohol thermometers.
  • Always minimize your use of mercury and mercury compounds whenever possible.
  • Avoid using mercury thermometers in a laboratory oven.
  • Do not keep excess mercury around if you do not need it.
  • Clean up spills promptly.
  • When handling mercury use a glass, plastic or steel tray to contain any spills that might occur.
  • Always store mercury in unbreakable containers.
  • Use appropriate PPE when working with mercury.
  • NEVER dispose of it down the sink!
  • Only use mercury in an operating fume hood
  • Always wash your hands after handling mercury to prevent skin absorption or irritation.

 

How to handle a Small Mercury Spill:

  • Warn other laboratory personnel.
  • Put on appropriate protective clothing.
  • Mark off spill area.
  • Pools and droplets of metallic mercury can be pushed together and collected with an index card or stiff paper.
  • After the gross contamination has been removed, sprinkle the entire area with mercury absorbent powder or amalgam provided in a mercury spill kit.
  • Dampen amalgam with tap water.
  • Using a sponge or index card, work the wetted amalgam into a paste consistency while scrubbing the contaminated surfaces, cracks and crevices to pick up as much mercury as possible.
  • Collect amalgam, with a sponge or index card, with a light sweeping or scooping motion.
  • Wipe down surfaces with a wet sponge or towel.
  • Everything used in the cleanup (gloves, index cards, etc.) must be double bagged labeled as Mercury Spill Cleanup Materials using a Rutgers Hazardous Waste label.
  • Click here for Online Request for Hazardous Waste Disposal form .

 

Large Mercury Spills

Large mercury spills will require REHS. Contact us at (732) 445-2550 (Campus Police after hours).

Evacuate room or area and await REHS.