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' Material Safety Data Sheet No 385
<br /> from Genium's Reference Collection ETHYL BENZENE
<br /> Genium Publishing Corporation (Revision A)
<br /> 1145 CatNY 123 Street Issued August 1978
<br /> (Si8)3
<br /> Schenectady, )3 1277-8855 303-1836 USA cip cENuuu Pusustama CORP I Revised November 1988
<br /> SECTION 1. MATERIAL IDENTIFICATION 27
<br /> Material Name: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,Ethylbenzoi,C,H,C H.,, CAS No 0100414 NFPA
<br /> Manufacturer- Contact your supplier or distributor Consult the latest edition of the Chemicalweek HMIS
<br /> Buyers'Guide(Genium ref 73)for a list of suppliers H 2 R 1
<br /> ' F 3 13
<br /> R 0 S 2
<br /> PPG* K 4
<br /> *See sect 8
<br /> ' SECTION 2. INGREDIENTS AND HAZARDS % EXPOSURE LIMITS
<br /> Ethyl Benzene,CAS No 010041-4 Ca I00 OSHA PELs
<br /> 8-Hr TWA 100 ppm,435 mg/m'
<br /> 15-Min STET, 125 ppm,545 mg/&
<br /> ACGIH TLVs, 1988-89
<br /> TLV-TWA 100 ppm,435 mg/m'
<br /> TLV-STEL. 125 ppm,545 mg/m'
<br /> Toxicity Data*
<br /> *See NIOSH,RTECS(DA0700000),for additional data with references to Human,Inhalation,TCL, 100 ppm(8 Hrs)
<br /> reproductive,irritative,and mutagenic effects Rat,Oral,L.D. 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 to Water (eh)- Slight
<br /> Vapor Pressure 7 1 Torrs at 68'F(20'C) Specific Gravity(H=O-1) 0 86258 at 777(25 C)
<br /> Vapor Density(Air=1): 3 7
<br /> % Volatile by Volume Ca 100
<br /> Appearance and Odor: A clear,colorless, flammable liquid,charactenstic aromatic hydrocarbon odor
<br /> SECTION 4. FIRE AND EXPLOSION DATA
<br /> Flash Point and Method- 64'F(18'C)CC I Autoignition Temperature 810'F(432 22'C) ILEL 1%v/v UEL 6 7%viv
<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 fit-exposed containers of ethyl benzene,to
<br /> disperse ethyl benzene vapor,and to protect personnel attempting to stop an ethyl benzene IeaL 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
<br /> con-siderable distance to a low-lymg source of ignition and flash back to its origin Special Fire-fighting Procedures Wear a self-contained
<br /> breathing apparatus(SCBA)with a full facepiece operated in the pressure-demand orpositive-pressure mode
<br /> SECTION 5. REACTIVITY DATA
<br /> ' Stabillty/Polymerizatfon Ethyl benzene is stable in closed containers during routine operations Hazardous polymerization cannot occur
<br /> Chemical IncompatiblUttes 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 /> enc,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 caremogen by the NTP,LARC,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 untation,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 are set to prevent this intolerable
<br /> iintation 'Medical Conditions Aggravated by Long-Term Exposure* None reported Target Organs Skin,eyes,respiratory system,and
<br /> CNS Primary Entry Inhalation,skim contact Acute Effects: Irritation of the skin,eyes,and respiratory 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 Eves Immediately
<br /> ' Copynght C 1988 by Genium PublWaq Cnrpv*troo
<br /> Any cmu=e W 1Lw or reproduction w LWVI the publube's perrn=ou is prob]brted
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