Always read and understand the Safety Data Sheet before use or storage, and follow the manufacturer’s recommendations.
General storage considerations
Some general considerations for the storage of peroxide-forming chemicals (PFCs) include:
- Apply the peroxide-forming chemical label upon receipt. Note the date of receipt and date of disposal. Once the container is opened, record the date of opening.
- Store in appropriate containers - typically the original container or an amber glass bottle.
- Do not use loose-fitting caps and ground glass stoppers, as these can let oxygen in. Store under an inert gas (check the Safety Data Sheet) when applicable.
- Note: Some phenolic inhibitors for Class C PFCs require oxygen to work. Do not store these under inert atmospheres.
- Store in a cool, dry, dark cabinet.
- Low temperatures may cause peroxides to precipitate out of solution, which increases the chances of explosion.
- Always store liquid peroxides and PFCs above their freezing/melting point. If the manufacturer recommends storing the material in a refrigerator or freezer, ensure that the unit is explosion-proof and that the temperature is appropriate.
- Spray bottles and solvent wash bottles that contain PFCs should be emptied when work will be dormant. Consider your usage rate before filling these types of containers, and adjust accordingly to ensure that PFCs are not left sitting out for extended periods of time.