Overview

• A fridge containing about five grams of diazonium salts ruptured on June 12 in a chemistry lab on Via Mancinelli, triggering an immediate evacuation
• Diazonium salts are organic compounds that become unstable and potentially explosive if not maintained below 4–5°C
• Vigili del Fuoco’s NBC unit and Carabinieri bomb disposal experts established a secure perimeter to keep staff and students at a safe distance
• Safety teams have started decontamination procedures ahead of a scheduled controlled explosion of the compromised fridge
• Authorities report no injuries and state that normal laboratory operations will remain suspended until full safety clearance is granted