In 2023, a chemical release at a Midwestern U.S. power plant injured four workers. The post-incident investigation revealed that the plant’s copy of the NALCO 77225 SDS was unopened in a cabinet. The product? A corrosion inhibitor containing a proprietary blend of phosphonates and ammonium salts. Had the SDS been consulted, workers would have known that neutralization with dilute acetic acid was the correct first aid for skin contact—not water irrigation alone.