Chlorine

CAS RN: 7782-50-5

Agent Identification

Flask

Agent Identification

  • Chlorine is a yellow-green, noncombustible gas with a pungent, irritating odor. Chlorine's odor or irritant properties are discernible by most individuals at 0.32 ppm, which is less than the OSHA permissible exposure limit (PEL) of 1 ppm. Chlorine's odor or irritant properties generally provide adequate warning of hazardous concentrations. It is a strong oxidizing agent and can react explosively or form explosive compounds with many common substances. Chlorine is heavier than air and may collect in low-lying areas.
  • The toxic effects of chlorine are primarily due to its corrosive properties. The action of chlorine is due to its strong oxidizing capability, in which chlorine splits hydrogen from water in moist tissue, causing the release of nascent oxygen and hydrogen chloride which produce major tissue damage. Alternatively, chlorine may be converted to hypochlorous acid which can penetrate cells and react with cytoplasmic proteins to form N-chloro derivatives that destroy cell structure. Symptoms may be apparent immediately or delayed for a few hours.
  • Responders should obtain assistance in identifying the chemical(s) from container shapes, placards, labels, shipping papers, and analytical tests. General information on these identification technicques is located in Emergency Response Guidebook.
  • Devices - Chemical Agent Detector C2 Kit (liquid and vapor), Draeger CDS Kit (vapor and aerosol), Hazmat Smart Strips (qualitative)
  • A comprehensive source for the selection of chemical identification equipment is the Guide for the Selection of Chemical Detection Equipment for Emergency First Responders, Guide 100-06, January 2007, 3rd Edition, published by the Department of Homeland Security to assist with this process.
Find more information on this substance at: PubChem, PubMed