Which division pairing correctly matches Organic Peroxides?

Which division pairing correctly matches Organic Peroxides?

• A. Division 4.2 – Organic Peroxides
• B. Division 6.1 – Organic Peroxides
• C. Division 5.1 – Organic Peroxides
• D. Division 5.2 – Organic Peroxides

Answer: (D)

Organic Peroxides fall under Class 5 because they are oxidizing substances, but they have a distinct hazard due to the peroxide linkage that makes many of them thermally unstable and capable of violent decomposition. This unique risk is why they’re placed in Division 5.2 rather than as a general oxidizer. They’re not toxic materials (Division 6.1), nor are they substances that spontaneously ignite on their own (Division 4.2). So the correct pairing places Organic Peroxides in Division 5.2.

Organic Peroxides fall under Class 5 because they are oxidizing substances, but they have a distinct hazard due to the peroxide linkage that makes many of them thermally unstable and capable of violent decomposition. This unique risk is why they’re placed in Division 5.2 rather than as a general oxidizer. They’re not toxic materials (Division 6.1), nor are they substances that spontaneously ignite on their own (Division 4.2). So the correct pairing places Organic Peroxides in Division 5.2.