|
r
<br /> Materia! S-aty Data SheetNo. 385
<br /> from Genium's Reference Collection W ETHYL BENZENE
<br /> t 1 Genium Publishing Corporation
<br /> ! 1145 Catalyn Street F' (Revision A)
<br /> Schenectady,NY 12303-1836 USA Issued: August 1978
<br /> (518)377-8855 GEN1uq PUBLWNG CORP. Revised: november 1988
<br /> SECTION 1: MATERIAL-,:,IDENTIFICATION :.,, - 27
<br /> Material Name:ETHYL. BENZENE 3
<br /> Description(Origln/Uses):Used as a solvent and as an intermediate in the production of styrene monomer. 2 0
<br /> Other Designations:Phenylethane;Ethylbenzol;C,HjC6H,; CAS No,0100-414 , 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*
<br /> *See sect.8 K 4
<br /> SECTION 1.-:INGREDIENTS AND.HAZARDS % :`EXPOSURE' LIMITS
<br /> Ethyl Benzene,CAS No.010041-4 Ca 100 OSHA PF.Ls
<br /> 8-Hr TWA:100 ppm,435 mg/m'
<br /> 15-Min STEL: 125 ppm,545 mg/m'
<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,LD.: 3500 mglkg
<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): 0.86256 at 777(25'C)
<br /> Vapor Density(Air=1): 3.7
<br /> ono 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 647(18`C)CC Autoijnition Temperature: 810'F(432.22-C) LEL: 1%vlv UEL: 6.7%v/v
<br /> Extinguishing Media: Llsc foam,dry chemical,or carbon dioxide to put out ethyl benzene fires.A water spray maybe 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 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 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 /> 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: Ethel 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 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 are set to prevent this intolerable
<br /> irritation.Medical Conditions Aggravated by Long-Term Exposure: None reported.Target Organs: Skin,eyes,respiratory system,and
<br /> CNS.Primary Entry: Inhalation,skin contact Acute Effects: Imitation 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 /> x
<br /> and incoordination,as well as possible depression;confusion;and coma.Chronic Effects: None reported.First Aid: Eaves.Immediate y.
<br /> Caryrigbl 0 19BB by Genium Publiahint Cwpwaiim
<br />
|