Book excerpt: A perennial bestseller, this third edition includes individual entries for over 300 compounds. The extensive list of references has been updated and includes entries for 15 pesticides commonly used in greenhouses. Emphasis is placed on disposal methods that turn hazardous waste material into non-toxic products. These methods fall into several categories, including acid/base neutralization, oxidation or reduction, and precipitation of toxic ions as insoluble solids. The text also provides data on hazardous reactions of chemicals, assisting laboratory managers in developing a plan of action for emergencies such as the spill of any of the chemicals listed.