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Material Safety Data Sheet No. 385
<br /> from Genium's Reference Collection rTHYI. 3FNZEi�rE
<br /> 1 Genium Publishing Carporatien (P•evision A)
<br /> ? 1145 Catalyri Street issued: Au ust 1978
<br /> Schenectady,NY 12303-1836 USA aENIUhi PUBtISIiING CORP, Revised: November 1988
<br /> (518)377.8855
<br /> SECTION 1. MATERIAL. IDENTIFICATION r 27
<br /> Material Tame:ETHYL BENZENE
<br /> • 3
<br /> Description(Origin/Uses):Used as a solvent and as an intermediate in the production of styrene monomer. 2 0
<br /> Other Designations:Phenylethane;Ethylbenzol;C1HsC6Hs; CAS No.010041-4 • NFPA
<br /> Manufacturer: Contact your supplier or distributor.Consult the latest edition of the Chemicelweck HMIS
<br /> Buycrs'Guide"Genium ref.73)for a list of suppliers. F 3 P I
<br /> R 0 13
<br /> PFG' S 2
<br /> *See sect.8 K 4
<br /> SECTION 2. INGREDIENTS AND HAZARDS % EXPOSURE LIMITS
<br /> Ethyl Benzene,CAS No.0100.41-4 Ca 100 OSHA PELs
<br /> 8-HrTWA:100 ppm,435 mg/ml
<br /> 15-Min STEL: 125 ppm,545 mg/ml
<br /> ACGIH TLVs, 1988.89
<br /> TLV-1 WA:100 ppm,435 mg/ml
<br /> TLV-STEL:125 ppm,545 mg/ml
<br /> Toxicity Data's
<br /> I *See NIOSH,RTECS(DA0700000),for additional data with references to Human,Inhalation,TCL,:100 ppm(8 Hn)
<br /> reproductive,irritative,and mutagenic effects. Rat,Oral,LD,,: 3500 mg/kg
<br /> SECTION3W*"PHYSICAL.- DATA-,-,*-:-,
<br /> { Boiling Point: 27TF MCC) Molecular Weight: 106 Grams/Moie
<br /> Melting Point: -1397(-95'C) Solubility in Water (%): Slight
<br /> Vapor Pressure: 7.1 Torrs at 687(20'C) Specific Gravity(HBO=i): 0.86258 at 777(25'C)
<br /> Vapor Density(Air=1): 3.7
<br /> Vola'tlp by Volume: Ca 100
<br /> Appearanc:and Odor: A clear,colorless,flammable liquid;characteristic aromatic hydrocarbon odor.
<br /> SECTION, 4: FIRE AND EXPLOSION DATA
<br /> Flash Point and Method: 647(18'C)CC I Autoignition Temperature: 810T(432.22'C) LEL: 1%v/v UEL 6.7p,v/v
<br /> Extinguishing Media: Use foam,dry chemical,or carbon dioxide to put out ethyl benzene fires.A water spray may be ineffective in ex-
<br /> tinguishing the fire,because it can scatter and spread the burning liquid.Use water spray to cool fire-exposed containers of ethyl benzene,to
<br /> disperse ethyl benzene vapor,and to protect personnei attempting to stop an ethyl benzene leak.Unusual Fire or Explosion Hazards: This
<br /> liquid can readily form explosive vapor-air mixtures,especially when heated.Ethyl benzene vapor is heavier than air and may travel a con-
<br /> siderable distance to a low-lying source of ignition and flash back to its origin.Special Fire-fighting Procedures: Wear a self-contained
<br /> breathing apparatus(SOBA)with a full facepiece operated in the pressure-demand or positive-pressure mode.
<br /> SECTION 5. REACTIVITY DATA
<br /> Stabillty/Polytnerization: Ethyl benzene is stable in closed containers during routine operations.Hazardous polymerization cannot occur.
<br /> Chemical Incompatibilities: Hazardous chemical reactions can occur between ethyl benzene and strong oxidizing agents,acids,ammonia,
<br /> and bases.Conditions to AN-old: Avoid any exposure to sources of ignition such as heat,sparks,open flame,and lighted tobacco products,
<br /> etc.,and to incompatible chemicals.Use caution when entering confined spaces,particularly low-lying areas where explosive concentrations
<br /> of ethyl benzene vapor may be present.Provide good ventilation to such areas to prevent the concentration of this vapor.Hazardous Prod-
<br /> ucts of Decomposition:Thermal-oxidative degradation can include toxic gases such as carbon monoxide and/or aromatic hydrocarbon gases.
<br /> SECTION 6. HEALTH HAZARD INFORMATION
<br /> Carcinogenicity: Ethyl benzene is not listed as a carcinogen by the NTP,IARC,or OSHA.
<br /> Summary of Risks: Ethyl benzene vapor is severely irritating to the eyes and to the muccus membranes of the respiratory system.Sus-
<br /> tained inhalation of excessive levels can cause depression of the central nervous system(CNS)characterized by dizziness,headache,
<br /> narcosis,and coma.Skin contact with liquid ethyl benzene causes irritation;dermatitis and defatting can also develop.The acute oral toxicity
<br /> of ctliyl benzene is low;however,ingestion of it presents a serious aspiration hazard.Aspirating even a small amount into the lungs can
<br /> result in extensive edema(lungs filled with fluid)and hemorrhaging of the lung tissue.No systemic effects are expected at the levels that
<br /> y produce pronounced,unignorable,disagreeable skin and eye irritation.ThcTLVs cited in section 2 are set to prevent this intolerable
<br /> irritation.Medical Conditions Aggravated by Long-Term Exposure: None reponcd.Target Organs: Skin,eyes,respiratory system,and
<br /> CNS.Primary Entry: Inhalation,skin contact Acute Effects: Irritation of the skin,eyes,and respiratory system.Also,cardiac-rhythm dis-
<br /> turbance due to sensitizat;on;acute bronchitis,bronchospasm,pulmonary and laryngeal edema;euphoria;headache;giddiness;dizziness;
<br /> and incoordination,as well as possible depression;corfusion;and coma.Chronic Effects: None reported.First Aid: Eves.Immediately
<br /> eormpt e]933 by G'..j.P.Wuhnr Co,.T-.I,-
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