Chemical Waste Disposal Procedures

Chemical Waste Disposal Procedures

What is chemical waste?

Chemical waste is mainly generated from chemical by-products of laboratory work, as well as expired chemicals.  They include solids, liquids or gases containing or contaminated with any of the following:

  • flammable solvents (e.g., acetone, alcohols, acetonitrile)
  • leachate toxic materials (e.g., heavy metals,)
  • corrosives (e.g., hydrochloric acid, potassium hydroxide pellets)
  • reactives such as oxidizers, cyanides, sulphides, explosives, unstable materials and water-reactive materials (e.g., sodium metal, benzoyl peroxide)
  • toxic materials including mutagenic, carcinogenic, acute or chronic toxicity materials (e.g., chloroform, ethidium bromide)
  • non-returnable gas cylinders

For more details, please refer to the different chemical waste disposal guidelines.


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