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<br /> Material Safety ' Data Sheet No.385
<br /> from Genium's Refereflee Covection ® ETHYL BENZENE
<br /> Curium Publishing Catporation (Revision A)
<br /> 1145 cowyn saes Issued: Nuvst 1978
<br /> St:womady,NY 12303.1836 USA cru rususmm amp. Revisedoember 1988
<br /> (SIS)3774855
<br /> FSECTION 3. MATERIAL 4DENTIFICATION ::::::,:.;<... ;. 27
<br /> e:ETHYL BENZENEOrIgInWass):Used as a solvent and as an intermediate in the production of styreneationx Phecylethane;Ethylbenml;CACH;, CAS No.0100.41.4 NFPA
<br /> r: CouW your supplier or distnbutm.Consult the latest edition of the Chowcahreek HMIS
<br /> s(Gentium rd.73)for a list of suppliers. H 2 R 1
<br /> R 1 3
<br /> 0
<br /> PPC,* 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 FELS
<br /> 11-Hr TWA:100 ppm,435 mg/ml
<br /> 1S-Min STEL: US ppm,545 mg/ml
<br /> ACGIH TLVs, 1988-89
<br /> TLV-TWA:100 ppm,435 mg/ml
<br /> TLV-STEL:I2S ppm.545 mg/m'
<br /> Tukhy Data*
<br /> *See NIOSH,RTECS(DA0700000),for addidonal data with references to Human.Inhalation.TC,:100 ppm(8 Hrs)
<br /> reproductive,irritative,and mutagenic effects. Rsk Oral.LD,: 3500 mg/kg
<br /> SECTION 3. PHYSICAL DATA
<br /> Boiling Point: 2777(136'C) Molecular Weigbt: 106 Grams/Mole
<br /> Melting Point: -1397(-95'C) Solubility In Water (%): Slight
<br /> Vapor Pressure: 7.1 Torrs at 687(20'C) Specific Gravity(HO a 1): 0.86258 at 777(25'C)
<br /> Vapor Density(Alr=1): 3.7
<br /> % Volatile by Volume: Ca 100
<br /> Appearance and Odor: A clear,colorless,flammable liquid;characteristic aromatic hydrocarbon odor.
<br /> SECTION 4. FIRE AND EXPLOSION DATA
<br /> flash Point and Method 647F(18'C)CC Autoignition Temperature: 810'F(432.22'C) LEL: 1%vryUEL• 6.7%vrv.
<br /> Extinguishing Media: Use foam,dry chemical,or carbon dioxide to put out ethyl benzene fires.A water spray may be ineffective m ex-
<br /> tinguishing the fire,because it can setter 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 /> breathing apparatus(SOBA)with a full facepiece operated in the pressure-demand or positive-pressure mode.
<br /> SECTION 5. REACTIVITY DATA
<br /> Stability/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 benuoe 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 /> 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 /> acts 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. respiratory=y=� Sus-
<br /> Summary of Risks: Ethyl benuae vapor is severely irritating to the eyes and to the mucous membraoea of the rap'
<br /> tamed 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 pungs filled with fluid)and hemorrhaging of the lung tissue.No systemic effects are expected at the levels that
<br /> produce pronounced,unigoorable,disagreeable skin and eye irritation.The TLVs cited in section 2 are set to prevent this intolerable��and
<br /> irritation.Medical Conditions Aggravated by Long-Term Exposure: None teported.Target Organs: Skin,eyes,ttspirawry system
<br /> CNC Primary Entre: Inhalation,ski*rnntact Ante Effects: UT+tatinn of the skin,eyes,and respiratory system.Also,cardiac-rhythm du-
<br /> turbaace 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: Eyes immediately
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