Incompatibility storage hazards include which of the following?

• A. Heat generation, gas evolution, or pressure buildup due to reaction between incompatible materials.
• B. Formation of color changes with no heat.
• C. Only slow dissolving of solids.
• D. No hazards in mixing.

Answer: (A)

Incompatibility storage hazards come from reactions between materials that shouldn’t be stored together, which can generate heat, release gases, or build pressure inside containers. The statement that describes heat generation, gas evolution, or pressure buildup directly reflects what can happen when incompatible materials react in storage, making it the correct idea. Color changes with no heat aren’t reliable indicators of a hazardous incompatibility, slow dissolution isn’t tied to incompatibility hazards, and the notion that there are no hazards in mixing is simply incorrect—incompatibility is all about the dangerous conditions that can arise when incompatible substances come into contact.