Should formalin be refrigerated

Formalin, which is a solution of formaldehyde in water, does not necessarily need to be refrigerated, but it should be stored in a cool, dry place away from direct sunlight to maintain its stability. Refrigeration can help prolong its shelf life, especially if it is stored for an extended period. However, it is important to keep it tightly sealed and in a proper container to prevent evaporation and contamination. Always refer to specific storage guidelines provided by the manufacturer for best practices.