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Material Safety Data Sheet No. 318 From Genium's Reference Collection XYLENE (Mixed Isomers) Genium Publishing Corporation RPvi^;�I;l D) NY 1145 12n Street Issued: November 1980 Schenectady,NY 1303.1836 USA (518)377.8855 OENIUM PUBLISHING CORP. Revised: August 1988 SECTION I. MATERIAL IDENTIFICATION 26 Material Name: XYLENE(Mixed Isomers) 3 Description (Origin/Uses): Used as a raw material for the production of benzoic acid,phthabc anhydride,isophthalic Z o and tcrephthalic acids and their dimethyl esters in the manufacture of polyester fibers;in sterilizing catgut;with Canadian balsam as oil-immersion in microscopy;and as a cleaning agent in microscopic techniques. Other Designations: Dimethylbenzene;Xylol; CAH o; CAS No.1330-20-7 NFPA Manufacturer: Contact your supplier or distributor. 6nsult the latest edition of the Chemicalweek HMIS Buyers'Guide(Genium ref.73)for a list of suppliers. H 2 R 1 Comments: Although there ate three different isomers of xylene(ortho,meta,and para),the health and physical F 3 I 3 hazards of all three isomers are very similar. This MSDS is written for a xylene mixture of all three isomers, R 0 which is usually commercial xylene. PSee sect.8 K 3 SECTION 2. INGREDIENTS AND HAZARDS % EXPOSTIRE LIMITS Xylene(Mixed Isomers),CAS No.1330-20.70 " IDLH" Level:I000 ppm *o-Xylene,CAS No.0095-47-6 OSHA PEL m-Xylenc,CAS No. 0108-38-3 8-HrTWA:100 ppm,435 w•Im' p-Xylene,CAS No.019642-3 ACGIH TLVs, 1937.88 "Check w-th your supplier to determine if there are additions,contaminants,or TLV-TWA:100 ppm,435 mg/m' impurities(such as benzene)that are present in reportable quantities per TLV-STEL:150 ppm,655 mg/e 29 CFR 1910. —Immediately dangerous to life and health. Toxicity Data"" ****See NIOSH,RTECS(No.ZE2100000),for additional data with references Human,IaL TCS,:200 ppm Man,Inhalation,LC,: 14400 ppm/6 firs to mproductive,irritative,and mutagenic effects. Rat,Oral,LD,o:4300 mg/kg SEUfIONt 3:PHYSICAL. DATA. .... Boiling Point: 2757 to 293'F(135'C to 145*C)* Water Solubility(n,): Insoluble Melting Point: -13'F(-25'C) Molecular Weight: 106 Grams/Male Evaporation Rate:0.6 Relative to BuAc=i % Volatile by Volume: Ca 100 Specific Gravity(H,0 =I): 0.86 Vapor Pressure: 7 to 9 Torrs at68'F(20'C) Vapor Density(Air= 1): 3.7 Appearance and Odor: A clear liquid;aromatic hydrocarbon odor. *Materials with wider and narrower boiling ranges are commercially available. SECTI N 4:FIRE AND EXPLO I N DATA LOWER I TIPPFR Flash point and Method Autoignidon Temperature Flammability Limits in Air 81'F to 907(27'Z:w 32'C) I 867-F(464-C) %by Volume I i% 790 Extinguisbing Med fa: Use foam,dry chemical,or carbon dioxide.Use water sprays to reduce the rate of burning and to cool containers. Unusual Fire or Exp los son Hazards:Xylene vapor is heavier than air and may travel a considerable distance to a low-lying source of ignition and flash back. Speriai Fire-fighting Procedures: Wear a self-contained breathing apparatus(SCBA)with a full facepiece operated in the pressure- demand or positive-pressure mode. SECTION 5. REACTIVITY DATA Xylene is stable in closed containers during routine operations. It does not undergo hazardous polymerization. Chemical Inc rmpattbilities: This material may react dangerously with strong oxidizers. Conditions to Avoid: Avoid any exposure to sources of iguition and to strong oxidizers. Hazardous Products of Decomposition: Carbon monoxide(CO)may be evolved during xyienc fires. Cawttr"t C IM C'mur..f',b,atmr Co—clor.