Lesson 1, Topic 1
In Progress

Class 5 – Oxidizing substances and Organic Peroxide

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  • There are two divisions in Class 5
  • 5.1 Oxidizer
    o Can cause or contribute to the combustion of other material by yielding oxygen even if the product itself is not combustible
    o Packing Group Criteria can be found in TDGR 2.25
  • 5.2
    o Thermally unstable organic compounds that contain the bivalent “-O-O-“ chemical bond
    o Liable to self-accelerating chemical separation that produces heat  (exothermic decomposition)
    o May have one or more of the following characteristics:
    – Burns rapidly
    – Sensitive to impact or friction
    – Reacts dangerously with other substances
    – Liable to explosive decomposition
    – Causes damage to the eyes
    o No Packing Groups assigned for air transport
    o TDGR 2.25 (3) Class 5.2 are assigned to PG II for surface transport