Reactive items must be stored carefully. Some drain cleaners rely on the reactive process. They may contain sodium bisulfate, which, when mixed with water, makes a weak sulfuric acid. Bleach and many scrubbing and dishwashing detergents that contain chlorine bleach should not be allowed to come in contact with ammonia, lye, or acids. Toxic materials are those materials that may release toxicants or poisons in sufficient quantities to pose a substantial hazard to human health.
Most cupboards are full of toxic materials.
From air fresheners to carpet deodorizers, medicines to vitamins, mothballs to oven cleaners, the potential poisons are numerous. Disposing of Household Hazardous Waste Read the label. Some hazardous material containers indicate the proper disposal technique. Household cleaners designed to be used with water in the home can probably be disposed of by pouring down the drain. Let the water run, rinse the container, and slowly pour the chemical down the drain.