Breadcrumb Home Hazardous Waste Manual Chapter 5 - Managing Hazardous Waste 5.2 Characteristic Waste 5.2.2 Corrosivity 5.2.2 Corrosivity Print Page It is aqueous and has a pH of less than or equal to 2 or greater than or equal to 12.5. It is a liquid and corrodes steel at a rate greater than 0.250 inch per year. ‹ Previous Next › Page