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- N <br /> ATTACHMENT 4 <br /> ' CHARACTERISTIC TEMPERATURES OF SOME IMPORTANT CHEMICALS <br /> Heat and temperature changes can cause physical changes and chemical reactions that may <br /> create hazardous conditions. Many of these changes result from temperature changes that can <br /> occur in the outside air or in the workplace. <br /> ' Melting and Boiling Combustion <br /> Temperatures Temperatures <br /> OF 'F <br /> Gas <br /> 2121 Boiling Point 816' Auto-ignition <br /> Rapid Temperature <br /> Evaporation <br /> i� Liquid <br /> l Slow <br /> JEvaporation <br /> 321 Melting Point <br /> Solid <br /> Fire Point <br /> -4° Flash Point <br /> WATER ACETONE <br /> 100° <br /> Boiling Point of Ethyl ether(940) <br /> 800- <br /> 601- <br /> Typical <br /> 0°60°Typical Boiling Point of Ethylene oxide (510) <br /> Environmental <br /> Temperatures Melting Point of PCBs (501) <br /> 400- Flash Point of Toluene (40°) <br /> 200- <br /> 0 <br /> 0°-0°- Flash Point of Acetone(-4') <br /> Source: Handbook of Physics and Chemistry <br />