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<br /> ii MatenSafety Data Sheets Collection:
<br /> Genium Publishing Corporation. .
<br /> ® in. One Genium,PLtza Sheet No.318 € -
<br /> Schenectady,NY 12304-4690 USA Xylene(Mixed Isopters)P "
<br /> (518)377/8854
<br /> Issued: 11180 Revision:E 9 2
<br /> Section .' Materiatadentificatlon _. 39:
<br /> Xylene(Mixed Isomers)(C,Hrd Description:The commercial prpduct is a blend of the three isomers[ortho-(o-),meta-(m- R 1 NFPA
<br /> ),para-(p-)]with the largest proportion being m-xylene.Xylene is obtained from coal tar,toluene by transalkylation,.and ij -1 2 3
<br /> pseudocumene Used in the manufacture of dyes,resins,paints,varnishes,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 repellants,pharmaceuticals.and
<br /> the leadies industry;in the production-of phthalic anhydride,isophthalic,and tmplithalic acids and their dimethyl estersHMIS
<br /> which are used in the manufacture of polyester fibers;and ser an indirect food additive as a component of adhesives.Around': H 2f
<br /> the home,xylene is found as vehicles in paints,paint removers,depeasing cleaners,lacquers,glues and cements and as a'i F 3
<br /> solveriVvehicles for pesticides. F F R 0
<br /> Other Designations:CAS No.1330-20-7[95-47-6;108-38-3;1062- 3(o-,m-,p-isomers)],dimethylbenzene, F .r „. PPE#
<br /> methyltoluene,NCI-055232,Violet 3,xylol. ° ti , t Chronic
<br /> Manufalcturer:Contact your supplier or distributor.Consult latest Chemical Week Buyers'Guide)for a suppliers list. Effetu
<br /> Cautions:Xylene is an t ec-8
<br /> y ye,skin,and mucous membrane irritant and may be narcotic in high concentrations.It is a tiangerous', fire hazard. I S
<br /> ;Section 2 ingredients and 0ccnpational Exposure Limits
<br /> Xylene(mixed isomers):the commercial product generally contains—40%m-xylene;20%each of o-xylene,p-xylene,and ethylbenzene;and small
<br /> quantities of toluene.Unpurified xylene may contain pseudocumene '
<br /> 1991 OSHA PELs 1992-93 ACGiH TLVs 1985-86 Toxicity Data*
<br /> 8-hr TWA: 100 ppm(435 mg/m3) TWA: 100 ppm(434 mg1m� Human,inhalation,TCL,:200 ppm produced
<br /> 15-min STEL:150 ppm(655 mg/m3) .STEL: 150 ppm(651 mg/rn) olfaction effects,conjuutctivit irritation,and other
<br /> BEI(Biological Ex sure Index):Mesh ]hi
<br /> 1990 IDLH Level {B g P° y ppuric changes involving the lungs,thorax,or respiration.
<br /> I000 ppm acids in trine at eird of shift 1.5 g/g creatinine Man,inhalation,LCL,: 1000p ppm/6 hr,toxic
<br /> �i Ieffects not yet reviewed. . a
<br /> 1990 DFG(Germany)MAK S; BIk I
<br /> 1990 NIOSH RELs Human,oral, 50 m no toxic effect noted.
<br /> 3 TWA: 100 ppm(440 mg/m3)
<br /> TWA 100 ppm(435 mg/m) Rat,oral,LDyo:4300 mg/kg;;toxic effect not yet
<br /> STEL:150 ppm(655 Ingle) Category Substances with systemic effects ,
<br /> Half-life:<2 hr ;' reviewed. n
<br /> 1.1 Peak Exposure:200 ppm,30 min,average value, Rat,inhalation,LC5D:5000 ppm/4 hr,toxic effects
<br /> #I� 4 shift ' $ not yet reviewed 1t ,r,
<br /> t peaks per _
<br /> "Sao N10SK RTECS CM 100=),for additional toxicity data.
<br /> :;Section 3, Physical Data';
<br /> Boiling Point Range:,279 to 284'F(137 to 140'C) Molecular Weight: 10616st
<br /> Boiling Point: ortho:291 'F(144'C) meta:281.8'F(138.8'C), Specific Gravity.0.864 at 20'C/4'C
<br /> Para:281.3'F(1385'C) 4 Water Solubility:Practically insoluble"
<br /> Freezing Point/Melting Point Ortho:-I3'F(-25'C); Other Solubilities:Miscible with absolute alcohol,ether,and
<br /> meta:-533'F(-47.4'C); para:55 to 57'F(13 to 14'C). i many other organic liquids.
<br /> Vapor Pressure: 6.72 term Hg at 70'F(21 'C) Octanol/Water Partition Coefni lent:logKow=3.12-3.20
<br /> Saturated Vapor Density(Air=1.2 kg/m3): 123 kg/M3,0.077 lbsift3 Odor Threshold; 1 ppm
<br /> _ Appearance and Odor.Clear,sweet-smelling liquid. .� ��;
<br /> Viscosity:<32.6 SUS s
<br /> Materials with wider and narrower boiling ranges ars corameraally ovatilsble.
<br /> SectionrenExp]osioa::Data .... .
<br /> Flash Point:63 to 77'F(17 to 25'C)CC Autoignitlon Temperature:982'F(527'C)(m-) LEL. 1.1 (m-,p-);0.9(o-) UEL.70(m,p.);6.7(o-)
<br /> Extinguishing Medla:For small fires,use dry chemical.carbon dioxide(CO2),wateTspiay or regular foam.For large fires,use water spray.fog or
<br /> regular foam.Water may be ineffective Use water spray to cool fire-exposed containers.Unusual Fire or Explosion Hazards:-Xylene vapors or
<br /> liquid(which floats on water)may travel to an ignition source and flesh back.The heat of flue may cause containers to explode and/or produce
<br /> irritating or poisonous decomposition products.Xylene may present i vapor explosion hazard indoors,outdoors,or in sewers:Aecumu fated static
<br /> electricity may occur from vapor or liquid flow sufficient to Cause ignition Special Fire-flgbting Procedures:Because fire may produce toxic
<br /> thermal decomposition products,wear a self-contained breathing apparents(GA)with a full facepiece operated in preasmdemartd or positive-
<br /> pressure mode.Structural firefighter's protective clothing will provide limited protection.if feasible and without risk,move containers from fire area.
<br /> Otherwise,cool fine-exposed containers until wellafter fire is extinguished.Stay clear of tank ends.Use unmanned hose holder or monitor nozzles for
<br /> massive cargo fires.If impossible,withdraw from area and lei Erre burn.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. i
<br /> `:Section`$ L-Reactiyity Data
<br /> Stability/Polymerization:Xylene is stable at room temperature in closed containers under normal storage and handling conditions.Hazardous
<br /> polyrnerization cannot occur.Xylene is easily chlorinated,sulfonared,-or nitrated.Chemical Incompatibilities:Incompatibilities include strong
<br /> acids and oxidizers and 1.3dichloro-5,5-dimethyl-2,4_imidazolidindione(dichlorohydrantoin).Xylene attacks some forms of plastics,rubber,and
<br /> coatings.Conditions to Avoid:Avoid heat and ignition sources and incompatibles. Hazardous Products of Decompositlon: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.(164)N7P,tt69t and OSHA(164)do not list z lene as a carcinogen.Summary Y g err} of Risks:Xylenc is an eye,mucous
<br /> membrane;and respiratory tract irritant.lrritation starts at 200 ppm severe breathing difficulties which may be delayed in onset can occur at high
<br /> concentrations.It is a central nervous system(CNS)depressant and at 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,benzene was often found as a contaminant of xylene and the effects attributed to'xylene such as blood
<br /> dyscrasias are questionable.Since the late 3950s,xylenes have been virtually benzene-free and blood dyscrasias have not been associated with
<br /> xykaxc. 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. y Coruirrere OR aur page
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