Chemicals that are highly reactive or stored in containers greater than one gallon must be stored in what arrangement?

• A. On open shelving
• B. In the same cabinet as other chemicals
• C. A separate cabinet, safety valve containers, or in a location isolated from other chemicals
• D. In a locked cabinet with no ventilation

Answer: (C)

When chemicals that are highly reactive or used in large quantities are involved, keeping them separate from other materials is essential. The correct storage approach is a separate cabinet, containers with safety valves, or a location isolated from other chemicals. This setup reduces the chance that a spill or a reaction in one chemical will contact others, and it provides appropriate containment and potential venting if a reaction occurs. Large containers increase the potential impact of a spill, so isolation helps protect people and other substances.

Storing on open shelving subjects reactive chemicals to more risk of spills, incompatibilities, and accidental contact. Keeping them in the same cabinet as other chemicals invites dangerous mixing. A locked cabinet with no ventilation may seem secure, but it fails to address the need to vent fumes and prevent cross-contact, so it’s not appropriate for these materials.