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NIOSH Pocket Guide to Chemical Hazards Page 1 of I <br /> NIOSH Pocket Guide to Chemical Hazards <br /> Tetrachloroethylene CAS 127-18-4 <br /> C12C=CC12 RTECS KX3850000 <br /> Synonyms &Trade Names DOT ID&Guide <br /> Perch lorethylene, Perch loroethylene, Perk, Tetrachlorethylene 1897160 <br /> Exposure I NIOSH REL:Ca Minimize workplace exposure concentrations.See Appendix A <br /> Limits OSHA PELt:TWA 100 ppm C 200 ppm 300 ppm(5-minute maximum peak in any 3-hours) <br /> IDLH Ca[950 ppm]See: 127184 Conversion 1 ppm=6.78 mg/m3 <br /> Physical Description <br /> Colorless liquid with a mild,chloroform-like odor. <br /> MW:165.8 BP:250°F FRZ:-2°F 11 Sol:0.02% <br /> VP: 14 mmHg IP:9.32 eV Sp.Gr: 1.62 <br /> F1.P:NA I UEL:NA LEL: NA <br /> Noncombustible Liquid,but decomposes in a fire to hydrogen chloride and phosgene. <br /> Incompatibilities&Reactivities <br /> Strong oxidizers;chemically-active metals such as lithium,beryllium&barium;caustic soda;sodium hydroxide;potash <br /> Measurement Methods <br /> NIOSH 1003.OSHA 1001 <br /> See:NMAM or OSHA Methods <br /> Personal Protection&Sanitation First Aid(See procedures) <br /> Skin: Prevent skin contact Eye: Irrigate immediately <br /> Eyes: Prevent eye contact Skin:Soap wash promptly <br /> Wash skin:When contaminated Breathing:Respiratory support <br /> Remove:When wet or contaminated Swallow:Medical attention immediately <br /> Change:No recommendation <br /> Provide:Eyewash,Quick drench <br /> Important additional information about respirator selection <br /> Respirator Recommendations NIOSH <br /> At concentrations above the NIOSH REL,or where there is no REL,at any detectable concentration:(APF=10,000) <br /> Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive- <br /> pressure mode/(APF=10,000)Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand <br /> or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus <br /> Escape:(APF=50)Any air-purifying,full-facepiece respirator(gas mask)with a chin-style,front or back-mounted organic <br /> vapor canister/Any appropriate escape-type,self-contained breathing apparatus <br /> Exposure Routes inhalation,skin absorption,ingestion,skin and/or eye contact <br /> Symptoms Irritation eyes,skin,nose,throat,respiratory system;nausea;flush face,neck;dizziness,incoordination; <br /> headache,drowsiness;skin erythema(skin redness); liver damage;[potential occupational carcinogen] <br /> Target Organs Eyes,skin,respiratory system, liver,kidneys,central nervous system <br /> Cancer Site[in animals:liver tumors] <br /> See also: INTRODUCTION See ECSC CARD:0076 See MEDICAL TESTS:0179 <br /> NIOSH Home I NIOSH Search [Site Index [Topic List] Contact Us <br /> http://www.cdc.gov/niosh/npg/npgd0599.htm1 2/7/2005 <br />