Your response must be at least 75 words in length Coal comes in many different

Your response must be at least 75 words in length

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Your response must be at least 75 words in length. Coal comes in many different forms, five of which are coal gas, coal tar, coke, carbon black, and activated carbon. Coal gas is a highly toxic and flammable gas that occurs when coal is heated in the absence of air within a closed assembly. It contains ammonia, carbon monoxide, hydrogen sulfide, hydrogen cyanide, and methane and does not condense when exposed to a cold-water bath. Coal tar is a viscous liquid that is produced by heating coal and is used for waterproofing when sealing underground pipelines or roofing and pavements. Coke is the solid form of coal that remains after coal or coal tar pitch is heated in the absence of air. It is used by metallurgists to reduce the ores of arsenic, tin, copper, iron and zinc, among other elements. It is also used to reduce the iron oxide in iron ore blast furnaces in the steel industry. Carbon black is created when coal tar is burned in a furnace with a limited amount of air, such as the soot that forms during petroleum fires. Carbon black is used in many commercial products such as inks, stains, tires, belts, and other rubber products. Finally activated carbon is created when charcoal is heated in the absence of air to a temperature of 1472 to 1652 degrees F. It is generally used as an absorbing medium and is frequently used by medical personnel as an antidote to treat potential poisoning by drugs or pesticides. When water contacts coal, coke or charcoal, the mixture may potentially react to form hydrogen and carbon monoxide, called “water gas”. Water gas can rekindle coal fires when ignited within a coal mine. Coal also poses a high risk of spontaneous combustion, especially when large amounts are stored in bins, bunkers, or piles for long periods of time. In cases of incidents involving a release of coal and/or carbon, the DOT recommends different actions based on whether it is a spill or leak, fire or explosion, and based on what form the coal
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or carbon is in. These actions may include evacuation, calling in an emergency response team, isolation, staying upwind or uphill from the spill or incident, ventilation if necessary, the use of SCBA breathing apparatus, and the donning of chemically protective clothing. In addition, fires may be extinguished with dry chemical, water spray or fog, or chemically resistant foam. Ignition sources should be eliminated and spills or leaks should be stopped, if possible. These are only a few of the many actions recommended by the Emergency Response Guidebook for a coal or carbon release incident. Meyer, E. (2014). Sulfur. Chemistry of Hazardous Materials (6th ed., pp. 255-259.). Pearson. United States. Pipeline and Hazardous Materials Safety Administration. (2016). 2016 emergency response guidebook: a guidebook for first responders during the initial phase of a dangerous goods/hazardous materials transportation incident. Washington, D.C.: U.S. Dept. of Transportation, Pipeline and Hazardous Materials Safety Administration. Retrieved from - response-guidebook.pdf
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  • Fall '10
  • GUAN
  • Sulfur, Coal, Chemistry of Hazardous Materials

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