Government regulations and cost effectiveness require that as little hazardous waste as possible be generated.  The following guidelines are a checklist to accomplish waste minimization – they are not intended to restrict activities:

• Before beginning a project, determine the hazards associated with the material.  Where possible substitute less hazardous substances.
• Use small batch or micro-level reactions where possible.
• Order and maintain minimum quantities of chemicals.
• Certain chemicals are difficult and/or costly to dispose of and should be given special consideration.  Some types are:
  • Any heavy metal, e.g., mercury, barium, cadmium, chromium, beryllium, silver, selenium, tellurium, either elemental or in compounds.
  • Chlorophenols, dioxins, and cyanides.
  • Compressed gases (to include lecture bottles) or containers with liquids under pressure (especially if the substance is poisonous).  Where possible arrange with the supplier to accept return of used containers.
  • Manufacturers’ samples.  Either arrange for the manufacturer to accept return of unused material or ensure they provide an ample description of the product and its characteristics.