Recommended practices for managing PFCs in laboratories

Using PFCs

  • First in, first out: Use older chemicals before opening new containers. 
  • Complete a visual inspection before each use. 
  • Purchase minimum practical quantities so that they are used within the manufacturer’s expiration date. 
  • Always purchase inhibited PFCs unless your experiment will not tolerate the inhibitor. 
  • Dispensed solvents from laboratory purification systems do not contain inhibitors and can readily form organic peroxides. Best practices for using these solvents include: 
    • Do not dispense more than what will be used during the work period. 
    • Dispose of all unused solvents after dispensing. 
    • Maintain vigilance for crystal formation, precipitates, or residues. 
    • Clean receiving containers thoroughly before re-use.

Storing PFCs

  • Designate a single storage location for all PFCs to avoid “forgetting one.” Follow the recommended guidelines for PFC storage.

Testing PFCs

  • Test on a regular basis, as recommended by the manufacturer or the testing for peroxides guidelines. 
  • Never return decanted reagents to stock bottles.

Disposing of PFCs

  • Dispose of all PFCs by the manufacturer’s expiration date or as recommended in the PFC disposal guidelines. 
  • Contact EH&S if your PFC tests at 100 ppm or greater.