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Material Safety Data Sheet No318 From Genium's Reference Collection �� XYLENE (Mixed Isomers) y Geniurn Publishing Corporation 1145 Catalvn Street (Revision D) Schenectady,NY 1303-1836 USA Issued: November 1980 GENIUM PUBLISHING CORP. Revised: (5]S]377-8855 August 1988 SECTION L MATERIAL:IDENTIFICATION :26 Material Dame: XYLENE(Mixed Isomers) Description (Origin/Uses): Used as a raw material for the production of benzoic acid,phthalic anhydride,isophthalic 3 and terephthaiic acids and their dimethyl esters in the manufacture of polyester fibers;in sterilizing catgut;with tt Canadian balsam as oil-immersion in microscopy;and as a cleaning agent in microscopic techniques. Other Designations: Dimethylbenzene;Xylol; C,H,,,; CAS No. 1330-20-7 NFPA Manufacturer: Contact your supplier or distributor. Consult the latest edition of the Chemicalweek HMIS Buyers'Guidc(Geniurn ref.73)for a list of suppliers. H 2 R 1 Comments: Although there are 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. PPG* S 2 *See sect.8 K 3 SECTION 2. INGREDIENTS AND HAZARDS % EXPOSURE LIMITS Xylene(Mixed Isomers),CAS No. 1330-20-7* *' IDLH"' Level: I00o ppm *o-Xylene,CAS No.0095-47-6 OSHA PEL m-X}leve,CAS No. 0108-38-3 8-Hr TWA: 100 ppm,435 mg/ml p-Xylenc,CAS No.0106-42-3 ACGIH TLVs, 1987-88 'Check with your supplier to determine if there are additions,contarninants,or TLV-TWA:100 ppm,435 mg/ml impurities(such as benzene)that are present in reportable quantities per TLV-STEL: 150 ppm,655 mglm' 29 CFR 1910. 'Immediately dangerous to life and health. Toxicity Data'*' **** See NIOSH,RTECS(No.ZE2100000),for additional data with references Human,Inhalation,TC,:200 ppm to reproductive,irritative,and mutagenic effects. Man,Inhalation,LCL.: 10000 ppm/6 HisRat,Oral,LD.:4300 mglkg SECTION 3. PHYSICAL:DATAkol 'x Boiling Point: 275'F to 293'F(135'C to 145'C)* Water Solubility (%): insoluble Melting Point: -13'F(-25'C) Molecular Weight: 106 GramsrMole Evaporation Rate: 0.6 Relative to BuAc= 1 % Volatile by Volume: Ca 100 Specific Gravity (H.O = 1): 0.86 Vapor Pressure: 7 to 9 Torrs at 68'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. SECTION 4.TIRE AND EXPL SI N DATA LOWFR . TEEM Flash Point and Method Autoignition Temperature Flammability Limits in Air 81'1=to 907(27'C to 32'C) 867-F(464-C) %by Volume 1% 7% Extinguishing Media: Use foam,dry chemical,or carbon dioxide.Use water sprays to reduce the rate of burning and to cool containers. Unusual Fire or Explosion Hazards: Xylene vapor is heavier than air and may travel a considerable distance to a low-lying source of ignition and flashback, Special 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 Xvicne is stable in closed containers during routine operations. It does not undergo hazardous polymerization. Chemical Incompatibilities: This material may react dangerously with strong oxidizers. Conditions to Avoid: Avoid any exposure to sources of ignition and to strong oxidizers. Hazardous Products of Decomposition: Carbon monoxide(CO)may be evolved during xylene fires. cop:,r,.t a isss cmium r•.aiur.:aL coTa.60- W f'ah,