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One Geniurn Plaza Sheet No. 318
<br /> U
<br /> le. "Nxesomerst S ectady,NY 123Q��690 USA X Y � id Isomers)
<br /> (518)377-8854 Issued: i i f8O Revision: E, K2
<br /> "'t Section 1, Material Identification 39 '
<br /> Xylene(Mixed Isomers)(CAd Description:The commercial product is a blend of the three isomers (or,lho-(o-).mcla-(m• R I NFPA
<br /> ),para•(p-))with the largest proportion being m• xylene.Xylene is obtained from coal tar.toluene by transalkylation,and 1 2 3
<br /> pseudocumene.Used in the manufacture of dyes,ruins,pamts,varni.sks,.and other organics;as a general solvent for S 2 2 0
<br /> adhesives,a cleaning agent in microscope technique;as a solvent for Canada balsam microscopy;as a fuel component in K 3
<br /> aviation gasoline,protective coatings,sterilizing catgut,hydrogen peroxide,perfumes,insect repellanrs,pharmaceuticals,and
<br /> the leather industry;in the production of phthalic anhydride,isoplithalic,and terephau is acids and their dimethyl esters HMiS
<br /> which are used in the manufacture of polyester fibers;and as an indirect food additive as a component of adhesives.Around H 2t
<br /> PM the home,xylene is found as vehicles in paints,paint removers,degreasing cleaners,lacquers,glues and crmesmts and as F 3
<br /> solvenVvehicles for pesticides. R 0
<br /> L Other Designations:CAS No. 1330.20-7(95-47-6-. 108-38-3; 106-42-3(a,m-,p-isomers)),dimethylbenzene, PPE 1
<br /> methyltoluene,NCI-C55232,Violet 3,xylol. t chronic
<br /> r„ Manufacturer:Contact your supplier or distributor.Consult latest Chemical Week Buyers'Guidernl for a suppliers list Flf=s
<br /> I' Cautions:Xylene is an eye,skin,nand mucous membrane irritant and may be nwrotic in high concentrations.It is a dangerous fire hazard. I S'8
<br /> Section 2, Ingredients and Occupational Exposure Limits .
<br /> Xylene(mixed isomers):the commercial product generally contains•-40%m-xylene,20%each of o-xylene,p-xylene,and cthylbenzene;and small
<br /> quantities of toluene.Unpurified xylene may contain pseudocumene.
<br /> 1991 OSHA P£Ls 199243 ACGiH TLV: 1985-86 Toxicity Data"
<br /> 8-hr TWA: 100 ppm(435 m&10) TWA: 100 ppm(434 mg/ms) Human,inhalation,TCS,,:200 ppm produced
<br /> 15-min STEL: 150 ppm(65 mg/ms) STEL:150 ppm(651 mghrwrs) olfaction effects,conjunctiva irritation,and other
<br /> 1990 IDLH Level BEl(Biological Exposure Index):Methylhippuric changes involving the lungs,thanx,or respiration.
<br /> acids in urine at end of shift: 1.5 g/g creatinine Mari inhalation,LCu: 10000 ppm/6 hr;toxic
<br /> 1000 ppm effects not yet reviewed.
<br /> NIOSH RELs 1990 DFG(Germany)MAK Human,oral,L.Dt,,:50 mg/kg;no toxic effect noted.
<br /> 1990 Nm(435 m TWA: 100 ppm(440 mg/0) Rat,oral.LD50:4300 mg/kg;toxic effect not yet
<br /> TWA: 100 IO
<br /> PP 8/ms}f Category 13:Substances with systemic effects
<br /> STEL: 150 ppm(655 mg/m ) Half-life:[2 hr reviewed.
<br /> Peak Exposure:200 ppm,30 min,average value, Rat-inhalatioN LCyo:5000 ppm/4 hr;toxic effects
<br /> �f 4 peaks per shift not yet reviewed.
<br /> 1 } •Sae NIOSH,RTECS(XE2100000),for additional toxicity data.
<br /> Section 3. Physical Data
<br /> Soiling Point Range: 279 to 284 T(137 to 140'C)• Molecular Weight: 106.16
<br /> Bolling Point: oriho:291 'F(144'C); meta:281.8 T(138.8'C); SpeeIlk Gravlty:0.864 at 20'C/4'C
<br /> para:2813 T(1385'C) Water Solubility:Practically insoluble
<br /> Freezing Polnt/,titeltlag Point: oriho:-13 T(-25'C); Other Solubilities:Miscible with absolute alcohol,ether,and
<br /> meta:-53.3 T(-47.4'C); a.•55 to 57 T(13 to 14'C) many other organic liquids
<br /> {° Vapor Pressure: 6.72 mm 1-ig at 70'F(21 'C) Octanol)Water Partitlon CoeRicient:IogKow=3.12-3.20
<br /> I { Saturated Vapor Density(Air=1-2 kg/m : 1-23 kg/rr?,0.077 lbs/fts Odor*Tbreshold: 1 ppm
<br /> Appearance and Odor.Clear,sweet-smelling liquid Viscosity:<32.6 SUS
<br /> •Materials with wider and narrower baling ranges are commercially available.
<br /> r€- Section 4.:-Fire and Explosion Data - - - -
<br /> .t hash Point:63 to TJ*F(17 to 25'C)CC Autoignition Temperature:982'F(527*Q(m-) LEL: 1.1 (m-,p-);0.9(o-) U£L:7.0(m.,p-);6.7(o-)
<br /> Exlingulshing Med 4a:For small fires,use dry ehemicalrcarbon-dioxide(CO.),water spray or regular foam.-For large.fires,use water spray,fog or
<br /> r� regular foam Water may be ineffective.Use water.spray to cool fire-exposed containers.Unusual Flre or £xplos[oa Hazards:Xylene vapors or
<br /> 1 l liquid(which floats on wauz)may travel to an igntion source and flash back_The heat of fire rtny cause containers to explode andlor produce
<br /> rrriii irritating or poisonous decomposition products.Xylem may present a vapor explosion hazard indoors,outdoors,or in sewers.Accumulated static
<br /> ficient to cause ignition.Special Fire-flghting Procedures:Because fire may produce toxic
<br /> electricity may occur from vapor or liquid flow suf
<br /> thermal decomposition products,wear a self-contained breathing apparatus(SOBA)with a full facepiam operated in pressure-demand or positive-
<br /> pressure mode.Structural firefighter's protective clothing w01 provide limited protection.If feasible and without risk rr+ove containers from fire area.
<br /> f Otherwise,cool fire-exposed containers until well AUK,is extinguished.Stay clear of tank ends.Use unmanned hose holder or tranitor nozzles for
<br /> massive cargo fires.If impossible,withdraw from area and let fire bum.Withdraw immediately in case of any tank discoloration or rising sound from
<br /> venting safety device.Do not release runoff from fire control methods to sewers or waterways.
<br /> Section S. Reactivity Data
<br /> StabllitylPolymerizatlon:Xylene is stable at room temperature in closed containers under normal storage and handling conditions.Hazardous
<br /> polymerization cannot occur.Xylem is easily chlorinated,sulfonaied,or nitrated.Chemical IncompatlbUitles:Incompatibilities include strong
<br /> acids and oxidizers and 1,3-dichloro-5,5-dimethyl-2,4-imidazniidindione(dichlorohydrantoin).Xylene aaacks some forms of plastics,rubber,and
<br /> coatings.Conditions to Avoid:Avoid heat and ignition sources and incompatibles. Hazardous Products of Decomposition:Thermal oxidative
<br /> decomposition of xylene can produce carbon dioxide,carbon monoxide,and various hydrocarbon products.
<br /> Section 6. Health Hazard Data
<br /> Carcinogenicity:The IARC,0`)NTP,ti69l and OSHAV")do not list xylene as a carcinogen.Summary of Risks:Xylene is an eye,mucous
<br /> membrane,and respiratory tract irritant.Irritation starts at 200 ppm;severe breathing difficulties which may be delayed in onset can occur at high
<br /> concentrations.It is a.eentral nervous system(CNS)depressant andat high concentrations can cause coma.Kidney and liver damage can occur with
<br /> xylene exposure.With prolonged or repeated cutaneous exposure,xylene produces a defatting dermatitis.Chronic toxicity is not well defined,but it
<br /> is less toxic than benzene.Prior to the 1950s,bcr=nne was often found as a contaminant of xylene and the effects attributed to xylene such as blood
<br /> dyscrasias are questionable.Since the late 1950s,xylenes have been virtually benzene-free and blood dyscrasias have not been associated with
<br /> xylenes. Chronic exposure to high concentrations of xylene in animal studies have demonstrated milk reversible decrease in red and white cell
<br /> counts as well as increases in platelet counts. COiUe on n
<br /> nnuest perg.
<br /> [,Pr¢a!a x,992 G_m. FLNhhma Corpavieal Any e®m'aci.] or r'F-• - .mow,t!.pub Wme,pc=Lft ee 6 pr h.'w L .
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