Strong oxidizing or reducing agents. Product is combustible. Remove all sources of ignition and ground all equipment before use. Floors may become slippery. Keep spill out of sewers and open bodies of water.
Incineration is the preferred method.
Then offer for recycling or reconditioning, or puncture and dispose of in a sanitary landfill, or incineration, or, if allowed by state and local authorities, by burning. If burned, stay out of smoke. Use safety glasses with side shields. Ground all containers prior to pouring. Keep containers closed until used.