This document provides a material safety data sheet for sodium lignosulfonate, which is available in three grades. It identifies the chemical and company details, composition, hazards, first aid measures, fire and explosion data, accidental release measures, handling and storage, exposure controls, physical data, stability, toxicological information, ecological data, disposal considerations, transport information, and other regulatory information. Sodium lignosulfonate is a yellow or brown powder, soluble in water, and may be combustible at high temperatures. Personal protective equipment is recommended when handling.