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Genium Publishing Corporation Material Safety Data Sheets Collection:
<br /> One Genium Plaza Sheet No.385
<br /> Schenectady,NY 12304-4690 USA Ethylbenzene
<br /> (518)377-8854 Issued. 8/78 Revision B,9192
<br /> . Section !. Material Identification 39
<br /> Ethylbenzene(C J%C=Hs)Description:Derived by healing benzene and ethylene in presence of aluminum chloride with R 1 NFPA
<br /> subsequent distillation,by fractionation directly from the mixed xylene stream in petroleum refusing,or dehydrogenation 1 3 3
<br /> of naphthenes Used as a solvent,an antiknock agent in gasoline,and as an intermediate m production of synthetic rubber. S 2• 2 0
<br /> styrene,cellulose acctate,diethylbenzene,acetophenone,ethyl anthraquinone,propyl oxide,and a-methylbenzol alcohol K 4
<br /> Other Designations:CAS No 100-41-4.ethylbenzoi.EB.phenyletham,NCI-056393 0 Skin
<br /> Manufacturer:Contact your supplier or distributor Consult latest Chemical Week Buyers'Gutde(13)for a suppliers Inst. absorption HMS
<br /> H 2t
<br /> F 3
<br /> R 0
<br /> Cautious-Ethylbenzene is a skm and mucous membrane irritant considered the most irritating of the benzene series Inhalation PPE-Sec-8
<br /> causes acute and chronic central nervous system(CNS)effects It is highly flammable and forms explosive mixtures with air t Qmme
<br /> effects
<br /> Section 2. Ingredients and Occupational,Exposure Limits
<br /> Ethylbenzene,ca>99 0% Impurities include 0145 nsera¶ xylene,--0145 cumate,and—0195 toluene
<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 mg/m) Human,inhalation.TCS 100 ppm/8 hr caused eye effects,
<br /> 15-min STEL 125 ppm(545 mg/m3) STEL 125 ppm(545 mg/m) sleep,and respiratory changes
<br /> Action Level 50 ppm(217 mg/m3) 1990 DFG(Germany)MAK Human,lymphocyte 1 mmol/L,induced sister chromatid
<br /> 1990 IDLH Level TWA 100 ppm(440 mg/m3) exchange
<br /> 2000 ppm Category i local irritants Rat,oral.LDS. 3500 mg/kg,toxic effects not yet reviewed
<br /> 1990 NIOSH REG Peak Exposure Limit.200 ppm,5 min Rat(female),inhalation.TC, 1000 ppm/1 hr/day,5 days/
<br /> TWA 100 ppm(435 mg(ml) momentary value,max of&/shift wk,for 3 wk prior to mating and daily for 19 days of gesta-
<br /> STEL. 125 ppm(545 mg/ml) Danger of cutaneous absorption tion produced pups with high incidence of extra ribs tib
<br /> •See NIOSH.R7'EGS(DA07000DO),for additional untation,mutation,reproductive,and toxicity data-
<br /> Section 3. Physical Data
<br /> Boiling Point-277'F(136'C) Molecular Weight:10616
<br /> . Melting Point:-139'F(-95'C) Density:0 863 at 77'F(25'C)
<br /> Surface Tension:31.5 dyne%m Water Solubility:Slightly. 14 mg/100 mL at 59'F(15'C)
<br /> Ionization Potential:8 76 eV Other Solubilities:Miscible in alcohol,ether,soluble in carbon tetrachloride,benzene,
<br /> Viscosity:0 64 cP at 77'F(25'C) sulfur dioxide,and many organic solvents,insoluble in ammonia
<br /> Refraction Index: 14959 at 68'F(20'C) Odor Threshold:2.3 ppm
<br /> Relative Evaporation Rate(ether=1) 0 0106 Vapor Pressure:7 1 mm Hg at 68'F(20'C), 10 mmHg at 78 62'F(25 9'C), 100 mm Hg
<br /> Bulk Density:7 21 lb/Gal at 77'F(25'C) I65 38-F(741 'C)
<br /> Critical Temperature:651 'F(343 9'C) Saturated Vapor Density(Air=0 075 lb/ft3 or 1.2 kg/m'):0 0768 lb/fe or 12298 kg/m3
<br /> Critical Pressure:35 6 atm
<br /> Appearance and Odor:Colorless,flammable liquid with a pungent odor
<br /> Section 4. Fire and Explosion Data
<br /> Flash Point:64'F(18'0)CC I Autoignition Temperature:810'F(432'0) LEL. 1091',v/v UEL.6 7%v/v
<br /> Extinguishing Media Class iB Flammable liquid For small fires,use dry chemical,carbon dioxide,or'alcohol-resistant'foam.For large fires,use
<br /> fog or'alcohol-resistant'foam Use water only if other agents are unavailable, EB floats on water and may travel to an ignition source and spread
<br /> fire Unusual Fire or Explosion Hazards:Burning rate=5 8 mm/min Vapors may travel to an ignition source and flash back.Container may
<br /> explode in heat of fire EB poses a vapor explosion hazard indoors,outdoors,and in sewers Special Fire-fighting Procedures:Because fire may
<br /> produce toxic thermal decomposition products,wear a self-contained breathing apparatus(SCBA)with a full facepiece operated in pressure-demand
<br /> or positive-pressure mode.Cool container sides with water until well after fire is out.Stay away from ends of tanks For massive fire in cargo area,
<br /> use monitor nozzles or unmanned hose holders.if impossible,withdraw from area and let fire burn Withdraw immediately if you hear rising sound
<br /> from venting safety device or notice any tank discoloration due to fire Do not release runoff from fire control methods to sewers or waterways
<br /> Section 5. Reactivity Data
<br /> 'Stability/Polymerization:Ethylbenzene is stable at room temperature in closed containers under normal storage and handling conditions Ham dou
<br /> polymerization cannot occur
<br /> Chemical Incompatibilities:Reacts vigorously with oxidizers
<br /> Conditions to Avoid.Exposure to heat and oxidizer
<br /> Hazardous Products of Decomposition:Thermal oxidative decomposition of EB can produce aced smoke and irritating fumes
<br /> Section 6. Health Hazard Data
<br /> Carcinogenicity:The IARC(164)NTP,t169i and OSHA('")do not list EB as a carcinogen Summary of Risks Occupational exposure to EB alone
<br /> is rare since it u usually present together with other solvents EB is irritating to the eyes,skin.and respiratory tract Vapor inhalation produces
<br /> varying degrees of CNS effects depending on concentratton The liquid is absorbed'through the skirt but vapors are not.156 to 64%of inhaled
<br /> ethylberizene is retained and metabolized Unitary metabolites following exposure to 23 to 85 ppm for 8 hr are mandelic acid(6496),phenyl-
<br /> 4 glyoxyitc acid(25%),and methylpheny1carbmol/1-phenyl ethanol(5%) Concurrent exposure to xylene and ethylbenzene causes slower excretion
<br /> of EB metabolites.Based on the rat L.Dso,one manufacturer gives 3 to 4 oz.as the lethal dose for a 100 lb person continue as nexr e i
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