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XYLENES (All Isomers) <br /> CAS NO 9547-6, 108-38-3, 106-42-3 DOT NO 1307 <br /> OSHA PEL 100 ppm UEL 67% <br /> ACGIH TLV 100 ppm LEL 09% <br /> OSHA STEL 150 ppm VP 7 mm <br /> NIOSH IDLH 900 ppm <br /> POTENTIAL DANGERS <br /> Local harmful effects of xylene include irritation of the eyes, nose, and throat Repeated or prolonged skin <br /> contact with xylene may cause drying and defatting of the skin which may lead to dermatitis Liquid xylene <br /> is an irritant to the eyes and mucus membranes, and aspiration of a few milliliters may cause chemical <br /> pneumonitis, pulmonary edema, and hemorrhage Repeated exposure of the eyes to high concentrations of <br /> xylene vapor may cause reversible eye damage <br /> Systemic effects of xylene vapor include central nervous system depression and minor reversible effects <br /> upon the liver and kidneys At high concentrations, breathing xylene vapors may cause dizziness, <br /> staggering, drowsiness, and unconsciousness Also at high concentrations, breathing xylene vapors may <br /> cause pulmonary edema, anorexia, nausea, vomiting, and abdominal pain <br /> Points of attack are the central nervous system, eyes, gastrointestinal tract,blood, liver, and skin <br /> ROUTES OF ENTRY <br /> Inhalation of vapor and, to a small extent, percutaneous dermal absorption of liquid Also ingestion and skin <br /> and eye contact <br /> FIRST AID <br /> If this chemical gets into the eyes, flush immediately with water for 15 minutes If this chemical contacts <br /> the skin, wash with soap and water promptly If a person breathes in large amounts of this chemical, move <br /> the exposed person to fresh air at once and perform artificial respiration, if needed When this chemical has <br /> been swallowed, get medical attention immediately DO NOT induce vomiting, aspiration may cause <br /> chemical pneumonia <br /> Note UEL, LEL and VP based on o-xylene <br /> ■ <br /> r <br />