The storage conditions for tetrachlorophthalic anhydride (THPA) must be strictly controlled to ensure its stability and safety.
Environmental Requirements: Store in a cool, dry, and well-ventilated warehouse, avoiding direct sunlight. The storage temperature should ideally be below 30°C to prevent decomposition or clumping due to high temperatures.
Moisture Prevention: THPA is hygroscopic and hydrolyzed; it must be stored in a sealed, moisture-proof container. Use desiccants if necessary.
Safety Separation: Keep away from fire, heat sources, and oxidizers. Avoid contact with strong alkalis, amines, and other substances to prevent violent reactions.
Container Selection: It is recommended to use corrosion-resistant plastic (such as polyethylene) or glass containers to avoid corrosion from metal materials (especially aluminum and iron).
Handling Protection: The storage area should be equipped with spill-proof facilities. Wear gloves, safety goggles, and other protective equipment when handling. Regularly check the integrity of the packaging; in case of leakage, absorb with inert materials. For long-term storage, humidity and temperature should be monitored to ensure compliance with chemical management regulations.
