Ignitable, Reactive, Toxic, Corrosive

Ignitable

Hazardous waste that is classified as ignitable includes the following:

  • Liquids with a flashpoint of less than 60o C / 140o F
  • Solids that burn spontaneously
  • Flammable compressed gas
  • Oxidizers
  • Materials with National Fire Protection Association (NFPA) or Hazardous Materials Identification System (HMIS) flammability hazard rating of 3 or 4.

 

Toxic

Hazardous waste that is classified as toxic contains one or more of 40 specific contaminants included in the TCLP (Toxicity Characteristic Leaching Procedure) table:

  • Arsenic
  • Barium
  • Benzene
  • Cadmium
  • Carbon Tetrachloride
  • Chlordane
  • Chlorobenzene
  • Chloroform
  • Chromium
  • O-Cresol
  • M-Cresol
  • P-Cresol
  • Cresol
  • 2,4-D
  • 1,4 Dichlorobenzene
  • 1,2 Dichloroethane
  • 1,1 Dichloroethylene
  • 2,4 Dinitrotoluene
  • Endrin
  • Heptachlor
  • Hexachlorobenzene
  • Hexachlorobutadiene
  • Hexachloroethane
  • Lead
  • Lindane
  • Mercury
  • Methoxychlor
  • Methyl ethyl ketone
  • Nitrobenzene
  • Pentachlorophenol
  • Pyridine
  • Selenium
  • Silver
  • Tetrachloroethylene
  • Toxaphene
  • Trichloroethylene
  • 2,4,5 Trichlorophenol
  • 2,4,6 Trichlorophenol
  • 2,4,5-TP (Silvex)
  • Vinyl Chloride

 

Reactive

Hazardous waste that is classified as reactive includes the following:

  • Materials that tend to be unstable at normal temperatures and pressures
  • Water reactive materials
  • Explosives
  • Cyanide or sulfide bearing wastes

Examples include:

  • Pyrophoric metals such as sodium
  • Cyanide wastes
  • Ethers
  • Peroxides

 

Corrosive

Hazardous waste that is classified as corrosive includes:

  • Aqueous solutions with pH less than 2 or greater than 12.5
  • Liquid that corrodes steel at a rate greater than 6.35 mm per year (0.25 inches per year) at a test temperature of 55°C (130°F)

Examples include:

  • Strong acids
  • Alkaline degreasers
  • Water/wastewater treatment chemicals
  • Any debris that is contaminated with this material