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' CGenium blishing Corporation t Matena*feiy Data Sheets Collection-
<br /> One Gentum Plaza Sheet No 385
<br /> Schenectady,NY 12344-4690 USA Ethylbenzene
<br /> (518)377-8854 Issued $l7$ Revision B, 9/92
<br /> t Section �. Material Identification 39
<br /> ' Ethylbenzene(C,HSC,Hs)Description Derived by heating benzene and ethylene in presence of aluminum chloride with R I NFPA
<br /> subsequent distillation by fractionation directly from the mixed xylene stream in petroleum refining, or dehydrogenation 1 3 3
<br /> of naphthenes Used as a solvent,an antiknock agent in gasoline and as an intermediate in production of synthetiv rubber, S 2* 2 0
<br /> styrene,cellulose acetate,dtethylbenzene,acetophenone ethyl anthraquinone,propyl oxide and a methylbenzol alcohol K 4
<br />' Other Designations CAS No 100-41-4,ethylbenzol EB,phenylethane,NCI-C56393 •Skin
<br /> Manufacturer Contact your supplier or distributor Consult latest Chemical Week Buyers Gutdet73l for a suppliers 115L absorption FMS t
<br /> F 3
<br />' R 0
<br /> Cautions 1~thyIbenxene is a skirt and mucous membrane irritant considered the most imtatirig of the benzene serves Inhalation PPE-Sec S
<br /> causes acute and chronic central nervous system(CNS)effects It is highly flammable and forms explosive nuxtures with au t Chronic
<br /> effects
<br /> Section 2 Ingredients and Occupational Exposure Limits
<br />' Ethylbemene,ca X99 09'6 Impurities include--0 19'6 meta¶ xylene,--0 1%cumene, and—0 1176 toluene
<br /> 1991 OSHA PELs 1992-93 ACGIH TLVs 1985-86 Toxicity Data'
<br /> 8-hr TWA 100 ppm(435 mg/ml) TWA 100 ppm (434 mg/ml) Human, inhalation TCi, 100 ppm/8 hr caused eye effects
<br />' 15-min STEL 12S ppm (545 mg/m3) STEL 125 ppm (545 mg/m3) 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,LD50 3500 mg/kg,toxic effects not yet reviewed
<br /> 19901N'IOSH REL Peak Exposure Limit.200 ppm,5 min Raz(female) inhalation,TCL. 1000 ppmf7 hr/day,5 days/
<br /> TWA 100 ppm(435 mg/m3) momentary value,max of 8/shift wk for 3 wk prior to mating and daily for 19 days of gesta-
<br /> STEL 125 ppm(545 mg1m) Danger of cutaneous absorption tion produced pups with high incidence of extra ribs("9)
<br /> t •See NIOSH,RTECS(1)A0700000) for additional irritation 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 315 dyne-lcm Water Solubility Slightly, 14 mg/100 mL at 59 'F(15 'C)
<br /> Ionization Potential 8 76 eV Other Solubilities Miscible m alcohol ether, soluble in carbon tetrachloride benzene
<br /> Viscosity 0 64 cP at 77 'F(25 'C) sulfur dioxide,and many organic solvents, tnsoluble in ammonia
<br /> Refraction Index 1 4959 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 721 Ib/Gal at 77'F(25 'C) 165 38 -F(74 1 'C) -
<br /> Critical Temperature 651 -F(343 9'C) Saturated Vapor Density(Air=0 075 lb/ft3 or 1.2 kg/m3) 0 0768 lb/h3 or 1 2298 kg/ria
<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'C)CC I Autoig iltion Temperature 810'F(432'C) LEL 1 0%v/v UEL 6 717o v/v
<br /> Extinguishing Media Class 113 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 />' Cire 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 ouL Stay away from ends of tanks For massive fire in cargo are?-
<br /> use
<br /> resuse monitor nozzles or unmanned hose holders, if impossible,withdraw from area and let fire bum 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 waterway s
<br /> Section S. Reactivity Data
<br />' Stability/Polymerization Ethylbenzene is stable at room temperature in closed containers under normal storage and handling conditions Hazardou
<br /> polymerization cannot occur
<br /> Chemical Incompatibilities Reacts vigorously with oxidizers
<br /> Conditions to Avoid Exposure to heat and oxidizers
<br /> Hazardous Products of Decomposition Thermal oxidative decomposition of EB can produce acrid smoke and trritaung fumes
<br /> Section 6 Health Hazard Data
<br /> l Carclnogerilclty The IARC t164y I,l l p,ti691 and OSHA{1661 do not list EB as a carcinogen Summar) of Risks Occupational cxposurc to E13 alo-Ic
<br />' is rase since it is usually present together with other so],ents EB is irritating to the eyes skin and respirator tract Vapor inhalation produces
<br /> varying degrees of CNS effects depending on concentration The liquid is absorbed through the skin but vapors are not 56 to 64%of inhaled
<br /> ethylbenzene is retained and metabolized Urinary metabolites following exposure to 23 to 85 ppm for 8 hr are mandelic acid(649'0) phcn,,l
<br />' glyoxylic acid(25%) and in c 0iylphenylearbuio ill phen)1 ethanol(517o) Concurrent exposure to Cylene and ethylbenzene causes slower excretion
<br /> of EB metabolites Based on the rat LD50 one manufacturer gives 3 to 4 oz as the lethal dose for a 100 ib person Continue on nczl page
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