Which practice is essential for peroxide-forming solvents to be monitored over time?

Which practice is essential for peroxide-forming solvents to be monitored over time?

• A. Only one-time testing at purchase.
• B. Periodic peroxide tests.
• C. Relying on color changes.
• D. Never testing.

Answer: (B)

Peroxide formation in solvents occurs gradually over time, especially when containers are exposed to air, light, and trace metals. This means the danger can grow long after the solvent is purchased, and it can be concentrated or distilled into a much more hazardous form. Because the rate and extent of peroxide buildup depend on storage conditions and the specific solvent, you need regular checks rather than a one-time check. Periodic peroxide testing is essential because it catches increasing peroxide levels before they reach dangerous thresholds. It provides a time-based safety signal that prompts disposal, stabilization, or appropriate handling. A test only at purchase misses later formation, and relying on color changes is unreliable since many peroxides are colorless. Never testing leaves the risk unmanaged.

Peroxide formation in solvents occurs gradually over time, especially when containers are exposed to air, light, and trace metals. This means the danger can grow long after the solvent is purchased, and it can be concentrated or distilled into a much more hazardous form. Because the rate and extent of peroxide buildup depend on storage conditions and the specific solvent, you need regular checks rather than a one-time check.

Periodic peroxide testing is essential because it catches increasing peroxide levels before they reach dangerous thresholds. It provides a time-based safety signal that prompts disposal, stabilization, or appropriate handling. A test only at purchase misses later formation, and relying on color changes is unreliable since many peroxides are colorless. Never testing leaves the risk unmanaged.