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j One Genium Plaza 5hef- o 6
<br /> �1 moi/ S' ectady,NY 12304 A694 USATett y� Lead
<br /> (518)377-8854
<br /> Issued: 8/88 Revision: A, 9/92
<br /> Section 1. Materia] Identification 3�
<br /> Tetraethyl Lead [(gH5)4Pb) Description: Derived by alkylation of lead-sodium alloy with excess ethyl chloride in a R 3 NFPA
<br /> nitrogen atmosphere or electrolysis of an ethyl Grignard reagent with an anode of lead pellets.Used as anti-knock agent in 1 4
<br /> gasoline aviation fuel.Formerly used in organomercury fungicides and in the manufacture of other metal alkyls such as S 3 _ 3
<br /> ethyl mercury compounds.Since 1974 its use in gasoline was largely replaced by methyl cert buryl ether[(,MTBE),see K� }
<br /> Genium NISDS No.735)after the USEPA issued regulations requiring its gradual reduction in gasoline.Du Pont was the absorption
<br /> last known company to produce TEL in the US and stopped production in 1990.There are still US companies with HW S
<br /> branches in Canada that continue to manufacture tetraethyl lead since it is still widely used in gasoline there and in Europe. F 3t
<br /> Other Designations:CAS No.78-00-2,TEL,NCI-C54988,tetraethyl plumbane. R 3
<br /> Manufacturer: Contact your supplier or distributor.Consult latest Chcrnica/Week Buyers'GuideM3 for a suppliers list. PPE S=
<br /> Cautions:Tetraethyl lead is highly toxic to the central nervous system(CNS).The liquid and vapor are easily absorbed through t Chronic
<br /> t the skin because of TEL's lipid solubility.It is a combustible liquid and can decompose explosively if exposed to air. tffecu
<br /> Section 2. 'Puedients and ccupational..Exposure.Mints
<br /> Tetraethyl lead,ca 9890.Impurities include ethylene dibromide,ethylene dichloride,dye(red,blue,orange),and kerosene.
<br /> 1991 OSHA PEL(Skin) 1992-93 ACCIH TLV' (Skin) 1985-86 Toxicity Datat
<br /> 8-hr TWA:0.075 mg/m3 TWA:0.1 mg/m3 Human,unreported route,TDL.: I A7 mg/kg:toxic effects
<br /> not yet reviewed.
<br /> 1990 IDLH Level 1990 DFG (Germany)MAIC(Skin)
<br /> 40 mg/m3 � 7'WA:DA1 ppm(D.075 mg/m3) Rat,ora],LD,,: 12.3 mg/kg caused aggression,altered
<br /> Category II:substances with systemic effects sleep time,.and convulsions or effect on seizure threshold.
<br /> 1990\'IOSH REL(Skin) g ry y Rat,inhalation,LCso:850 mg/m3/1 hr; toxic effects not yet
<br /> Half-Life:<•2 hr
<br /> 10-hr TWA:0.075 mg/0 Peak Exposure Limit-.O.D2 ppm,30 min ' reviewed
<br /> average value,4/shift Rat,oral,TDt,;:7.5 mg/kg administered from 12 to 14 days
<br /> of pregnancy caused post-implantation mortality or effects
<br /> •Biologic monitoring is esscrntiaI foc personnel control. on the developing ferus.
<br /> t Sec MASH,RTECS CR4550=),for additional reproductive,tumorigenic,and toxicity data.
<br /> _y Section 3. Physical Data
<br /> I 4 dolling Polnt:--392'F(200'C):decomposes Water Solubility:Insoluble,0.29 mg/L.at 77 'F(25'C)
<br /> t Freezing Polnt: -214,2'F(-136.8'C) Other Solubilities:Soluble in benzene,diethyl ether,gasoline,and petroleum ether.Slightly
<br /> Molecular Weight:373.45 soluble in alcohol.
<br /> Specific Gravity: 1,59 at 5I.8'F(I I 'C) Vapor Pressure: 02 mm Hg at 68'F(20'C); I mm Hg at 101.12'F(38.4 'C)
<br /> Ionization Potentlal: 11.10 eV Saturated Vapor Density(Air-12 kg/m3):"—same as air
<br /> Surface Tension:28.5 dyne/cm Relative Evaporation Rate:0.032 g/m7 at 68'F(20'C)and wind speed of 4.5 meter/second
<br /> Viscosity:0.864 mPa.s at 68'F(20'C) Refraction Index: 1.5198 at 68'F(20'C/D)
<br /> Appearance and Odor:Colorless liquid which may be dyed orange,red,blue or other color and has a slight musty odor.
<br /> Section 4. Tire and Explosion Data
<br /> Flash Point:200'F(93.3 'C),CC; 185-F(85 'C),OCI Autolgnition Temperature:None reported LEL. 1.8tFo v/v UEL:None reported
<br /> Extinguishing Media:A Class III B combustible liquid.For small fires,use dry chemical,carbon dioxide,water spray,or regular foam..For large
<br /> fires,use water spray,fog,or regular foam.
<br /> Unusual Fire or Explosion Hazards:Container may explode in heat of fire(>80'C).Tetraethyl lead burns as an orange flame with a green
<br /> margin and gives off extremely poisonous lead fumes.
<br /> I Special Fire-fighting Procedures:Because fire may produce toxic thermal decomposition products,wear a self-contained breathing apparatus
<br /> (SCHA)with a full faccpieee operated in pressure-demand or positive-pressure mode.Strucrural firefighters'protective clothing is not effective
<br /> for tetraethyl lead fires.Use clouting specifically recommended by manufacturer(be aware that these may or may not provide thermal protection).
<br /> Apply cooling water to sides of fire-exposed containers until well after fire is out-Stay away from ends of tanks.For massive fire in cargo area,
<br /> use monitor nozzles or unmanned hose holders;if this is impossible,withdraw and let fire bum.Do not release runoff from fire control methods tr
<br /> sewers or waterways.Evacuate 1/3 mile radius if feat becomes uncontrollable.
<br /> Section S. .Readiv,ity' Data
<br /> Stability/Polymerization:TEL decomposes slowly at room temperature and rapidly at 125 to 150'C.It also decomposes when exposed to sun os
<br /> allowed to evaporate in air.Exposure to air fix several days can cause explosive decomposition.Hazardous polymerization cannot occur.
<br /> Chemical Incompatlbilitles:TEL solubiliies fatty materials and has solvent action on rubber.It is incompatible with strong oxidizers,sulfuryI
<br /> chloride,potassium permanganaze,and ruSL
<br /> Conditions to Avoid:Exposure to heat,ignition sources,sunlight,air,strong oxidizers,and other incompatibles.
<br /> Hazardous Products of Decomposition:Thermal oxidative decomposition of TEL can produce carbon dioxide(CO2)and toxic lead(Pb)fumes_
<br /> -7,
<br /> . , >
<br /> Section 6. Health Hazard Data ' `:.
<br /> Carcinogenicity:The IARC.0 l NTP.0 1 and OSHA(I )do not list tetraethyl lead as a carcinogen.One study showed liver and blood tumors
<br /> (Hodgkins disease)in mice,termed unreliable because these tumors tend to occur spontaneously at times in this particular strain of mice.
<br /> Summary of Risks:Do not confuse the effects of Ictraethyl lead(TEL)with those caused by inorganic lead exposure.TEL is organic and whi]e
<br /> both are water insoluble.TEL is lipid soluble and easily enters the as brain while inorganic lead compounds can't.Neurologic symptoms are more
<br /> ( prevalent than any others.Tetraethyl lead has a latency period from exposure time to onset of symptoms as it must first be metabolized to iriethyl
<br /> lead before toxicity results.The greater the exposure concentration,the faster symptoms develop.TEL's ability to produce chronic toxicity has
<br /> been debated for years as is the efficacy of chelation therapy.Chronic toxicity was thought not to occur with organic lead compounds because they
<br /> -•- did not accumulate in the bone like inorganic lead. Cordinue on nes page
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