Which of the following sorbents is inappropriate for use on many hazardous materials?

Sawdust is considered inappropriate for use on many hazardous materials primarily due to its organic nature and the potential for chemical reactions with certain hazardous substances. While sawdust may absorb liquids, it is not effective for absorbing a wide range of hazardous materials, especially those that are highly corrosive, reactive, or produce toxic fumes when mixed with organic materials. Additionally, sawdust can break down and release contaminants back into the environment, which is not desirable in hazardous waste operations.

In contrast, sorbents like charcoal are specifically designed for chemical adsorption, making them suitable for a broader array of hazardous materials, as they can capture volatile organic compounds and some heavy metals effectively. Clay is also commonly used because it can absorb a variety of liquids, and polyolefin fibers are engineered for specific chemical interactions, providing a more controlled approach to spill response compared to sawdust.