1. Problem: Chemical Attack — When Packaging Becomes Part of the Reaction Corrosive solids — including sodium hydroxide pellets (UN 1823), calcium hypochlorite (UN 2880), and ferric chloride anhydrous (UN 1773) — present a unique challenge: the packaging itself becomes a reactant. A 2023 study by the European Chemical Industry Council (CEFIC) documented 47 packaging failure incidents in EU-bound chemical shipments over a 12-month period, with 62% attributed to inadequate