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Chemical IdentificationlRIDS <br />Chemical Name: CHLORINE <br />Regulatory Name: <br />CHLORINE <br />NFPA Codes F: 0 NFPA Codes H: 4 <br />Formula: Cl2 <br />DOT: POISON GAS, CORROSIVE <br />UN Num: 1017 <br />Sec 112R: X <br />EHS: 0 <br />CERCLA: <br />CAS: 7782-50-5 <br />NFPA Codes R: 0 <br />CAATQ: 2500 <br />EHSTPQ: 100 <br />RQ: 10 <br />STCC: 4920523 <br />4920539 <br />NFPA Codes S: Oxidizer <br />313: <br />RCRA: <br />CHRIS: CLX <br />General Description <br />A greenish yellow gas with a pungent suffocating odor. Toxic by inhalation. Slightly soluble in water. Liquefies at -35°C and room <br />pressure. Readily liquefied by pressure applied at room temperature. Density (as a liquid) 13.0 Ib / gal. Contact with unconfined liquid can <br />cause frostbite by evaporative cooling. Does not burn but, like oxygen, supports combustion. Long-term inhalation of low concentrations <br />or short-term inhalation of high concentrations has ill effects. Vapors are much heavier than air and tend to settle in low areas. Contact <br />CHEMTREC to activate chlorine response team 800-424-9300. Used to purify water, bleach wood pulp, and to make other chemicals. <br />Rate of onset: Immediate to hours <br />Persistence: Minutes to hours <br />Odor threshold: 3.5 ppm <br />Source/use/other hazard: Cleaner/disinfectant in many industries; water treatment; WWI war gas; irritating corr fumes heavier than air <br />CRIMINAL/TERRORIST USE OF CHEMICAUBIOLOGICAL AGENTS <br />The following is intended to supply information to first responders for use in making a preliminary assessment of a situation that they <br />suspect involves criminal/terrorist use of chemical and/or biological (CB) agents. To aid in the assessment, a list of observable indicators <br />of the use and/or presence of a CB agent is provided in the following paragraphs. <br />This preamble about differences goes into indicators section of bio and chem. databases <br />DIFFERENCES BETWEEN A CHEMICAL AND A BIOLOGICAL AGENT <br />Chemical and biological agents can be dispersed in the air we breathe, the water we drink, or on surfaces we physically contact. <br />Dispersion methods may be as simple as opening a container, using conventional (garden) spray devices, or as elaborate as detonating an <br />improvised explosive device. <br />Chemical Incidents are characterized by the rapid onset of medical symptoms (minutes to hours) and easily observed signatures (colored <br />residue, dead foliage, pungent odor, dead insects and animals). <br />Biological Incidents are characterized by the onset of symptoms in hours to days. Typically, there will be no characteristic signatures <br />because biological agents are usually odorless and colorless. Because of the delayed onset of symptoms in a biological incident, the area <br />affected may be greater due to the movement of infected individuals. <br />INDICATORS OF A POSSIBLE CHEMICAL INCIDENT <br />Dead animals/birds/fish <br />Not just an occasional road kill, but numerous animals (wild and domestic, small and large), birds, and fish in the same area. <br />Lack of insect life <br />If normal insect activity (ground, air, and/or water) is missing, check the ground/water surface/shore line for dead insects. If near water, <br />check for dead fish/aquatic birds. <br />Unexplained odors <br />Smells may range from fruity to flowery to sharp/pungent to garlic/ horseradish -like to bitter almonds/peach kernels to new mown hay. It is <br />important to note that the particular odor is completely out of character with its surroundings. <br />6/12/2007 Printed from CAMEO Page 1 <br />