Material Safety Data � Sheet No. 385
<br /> from Gcnium's Reference CoDection ETHYL BENZENE
<br /> Genium Publishing Corporation (Revision A)
<br /> 1145 Catalyn Street
<br /> Schenectady,NY 12303-1836 USA G& Issued: August 1978
<br /> (518)377-8855 cEHlust PVBusNtrtc CORP. Revised: November 1988
<br /> SECTION :'21. MATERIAL'::IDENTIFICATION 17:,
<br /> Material Natne: ETHYL BENZENE 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,C1HsC H,; CAS No.0100-41-4NFPA
<br /> Manufacturer: Contact your supplier or distributor.Consult the latest edition of the Chemicalweek HMIS
<br /> .Sayers'Guide(Genium ref.73)for a list of suppliers. H 2 R 1
<br /> F 3 I 3
<br /> R 0 S 2
<br /> PPG'
<br /> *See sect.8 K 4
<br /> SECTION.:2. INGREDIENTS :AND_HAZARDS ;%a `::EXPOSURE :LIMITS
<br /> Ethyl Benzene,CAS No.0100-41-4 Ca 100 OSHA PELs
<br /> 8-Hr TWA: 100 ppm,435 mg/ml
<br /> 15-Min STEL: 125 ppm,545 mg/e
<br /> ACGIH TLVs, 1988-89
<br /> TLV-TWA: 100 ppm,435 mg/ml
<br /> TLV-STEL: 125 ppm,545 mg/ml
<br /> Toxicltv Data*
<br /> *See NIOSH,RTE'CS(DA0700000),for additional data with references w Human,Inhalation,TC,: 100 ppm(8 Hrs)
<br /> reproductive,irritative,and mutagenic effects. Rat,Oral,LD,,: 3500 mg/kg
<br /> SECTION :`3. :PHYSICAL�: ;DATA: ` ..
<br /> Boiling Point: 2777(136'C) Molecular Weight: 106 Grams/Mole
<br /> ` Melting Point: -139'F(-95`C) Solubility in Water (%): Slight
<br /> Vapor,Pressure: 7.1 Torrs at 68'F(20'C) Specific Gravity(H2O=1): 0.86258 at 777(25'C)
<br /> Vapor Density(Air=1): 3.7
<br /> k Volat[le by Volume: Ca 100
<br /> Appearance and Odor: A clear, colorless, flamrnable liquid; characteristic aromatic hydrocarbon odor.
<br /> SECTION 4. FIRE AND ._EXPL'OSION :DATA.
<br /> Flash Point and Method: 64';=(18°C)CC Autoignition Temperature: 810'F(432-22°C) LEL: I%viv UEE 6.7%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
<br /> ex-tinguishing the fire,because it ran 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 personnel 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 /> I
<br /> breathing apparatus(SCBA)with a full facrpiecc operated in the pressure-demand or positive-pressure mode.
<br /> SECTION S. REACTIVITY DATA
<br /> Stabillt}•/Polymerization: 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 Avoid: Avoid any exposure to sources of ignition such as heat,sparks,open flame,and lighted tobacco products,
<br /> M..and w incompatible chemicals.Use caution when entering confined spaces,particularly low-lying arras 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 t`ri'p,IARC,or OSHA.
<br /> Summary of Risks: Ethyl benzene vapor is severely irritating to the eyes and to the mucous 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 ethyl 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 /> produce pronounced,unignorable,disagreeable skin and eye irritation.The TLVs cited in section 2 arc set to prevent this intolerable
<br /> irritation.Medical Conditions Aggravated by Long-Term Exposure: None reported.Target Organs: Skin,eves,respiratory system,and
<br /> CNS.Primary Entr}•: Inhalation,skin contact Acute Effects: Irritation of the skin,eyes,and respiralory system.Also,cardiac-rhythm dis-
<br /> turbance due to sensitization;acute bronchitis,bronchospasm pulmonary and laryngeal edema;euphoria;headache;giddiness;dizziness;
<br /> and incoordination,as well as possible depression;confusion;and coma.Chronic Effects: None reported.First Aid:.E.yes.Immediately
<br /> Copynrhl 019!18 by Gm-im Nbinhuy Corpmaum
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