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One Gentun Pizza Sheet No 664 ' Schenectady,NY 12304-4690 USA Tetraethyl Lead (518)377.8854 Issued 8/88 Revision A. 9/92 Section i 'Material Identification 3`- Tetrsetbyi Lead j(CzHs),Pb) Description Derived by alkylauon of lead-sodium alloy with excess ethyl chloride in a R 3 's FP rutrogern atmosphere or electrolysis of an ethyl Gngnard reagent with an anode of lead pellets Used as ants-knock agent in I 4 ' gasoline aviation fuel Formerly used in organorrtercnuy fungicides and in the manufacture of other metal alkyls such as S 3 _ 3 ethyl mercury compounds Stnce 1974 its use vn gasoline was largely replaced by methyl tett butyl ether[(MTBE) see 5k:rI Ge-um h1SDS No 735]after the US£PA Issued regulations requiruig its gradual reduction in gasoline Du Pont was the absorption last known company to produce TEL in the US and stopped production to 1990 There are still US comparues with KIVUS branches to Canada that continue to manufacture tetraethyl lead since it is still widely used in gasoline there and in Etuope H 3 t Other Designations CAS No 78-00-2,TEL, NCI-C54988,tetraethyl plumbane F 2 Ntanufacturer Contact your supplies or distributor Consult latest Chenucal Week Buyers GutdeM)for a suppliers list. R 3 PPE-Cautions Tetraeth i lead is highly toxic to the central nervous stem CNS The liquid and vapor are Basil absorbed through t ChrSec Y S Y system(CNS) q Po Y t Chronic ' the skin because of TEL's lipid solubiliry It is a combustible liquid and can decompose explosively if exposed to air tffecu Section 2 Ingredients and Occupational Exposure Lirruts Tetraethyl lead,ca 9817* Impunties include ethylene dibrotrude,ethylene dichlonde dye(red blue,orange),and kerosene 1991 OSHA PEI..(Skin) 1992 93 ACGIH TLV* (Skin) 1985-86 Toxicity Data 8 hr TWA 0 075 mg/m3 TWA 0 1 mg/m3 Human urueported route TDA 1 47 mg/kg tout effects 1994 IDLH Level 1990 DFG (Germany)MAK(Skin) not yet reviewed 40 mghn3 TYA 0 O1 ppm(0 075 mg/m3) ,. 12 3 mg/kg caused aggression altered Rat,oral LD ' gory II substances with systemic effects sleep time,and convulsions of effect on seizure threshold Cate 1994 NIOSH REL(Skin) CRat,inhalation LCj0 850 mg/m /1 hr, toxic effects not yet Half-Life <2 w reviewed I0-hr TWA 0 075 mg/m3 peak Exposure Limit 0 02 ppm 30 min Rat,oral,TD, 7.5 mg/kg administered from 12 to 14 days average value,4/shift of pregnancy caused post-implantation mortality or effects ' • Biologic morutonng is essenuai for personnel control on the developing fetus t Sec NIOSH RTECS(I"P4550000) for additional reproducuve wmongenic and toxicity dans Section 3. Physical Data 1 Bolling Point --392'F(200'C) decomposes Water Solubility lnsoluble,0 29 mg/L.at 77 F(25 'C) Freezing Point -214 2'F(-136 8'C) Other Solubilities Soluble in benzene,diethyl ether gasoline and petrolcurn ether Slightly Molecular Weight 323 45 soluble in alcohol Specific Gravity 1.59 at 518'F(11 'C) Vapor Pressure 0.2 mm Hg at 68 'F(20 C) 1 mm Hg at 101 12 F(38 4 'C) Ionization Po(entlal 11 10 eV Saturated Vapor Density(Air= 1-2 kg/m3) --same as air Surface Tension 28 5 dyne/cm Relative Evaporation state 0 032 g/m2 at 68 'F(20'C)and wind speed of 4-5 meter/second Viscosity 0 864 mPa s at 68'F(20'C) Refraction Index 1.5198 at 68'F(20 C/D) ' Appearance and Odor Colorless liquid which may be dyed orange red blue or other color and has a slight musty odor Section 4. Fire and Explosion Data Flash Point 200'F(933 'C) CC 185'F(85 'C) OC I Autolgnitfon Temperature None reported I LEL- 1 8%v/v I UEL None reported ' Extinguishing Media A Class III B combusuble liquid For small fires use dry chemical carbon dioxide, water spray,or regular foam For large fires use water spray,fog or regular foam Unusual Fire or Explosion Hazards Container may explode in heat of Fire(> 80'C) Tetraethyl lead burns as an orange flame with a green margin and gives off extremely poisonous lead fumes Special Fire-fighting Procedures Because fire may produce toxic thermal decomposition products wear a self-contained breathing apparatus (SOBA)with a full facepiece operated in pressure-demand or positive-pressure mode Structural firefighters'protective clothing is not effective for tetraethyl lead fires Use clothing specifically recommended by manufacturer(be aware that these may or may not provide thermal protection)- Apply cooling water to sides of fire-exposed containers until well after fire is out Stay away from ends of tanks For massive rue in cargo area, ' use monitor nozzles or unmanned hose holders,if this is impossible,withdraw and let fire bum Do not release runoff from fire control methods to sewers or waterways Evacuate 1/3 mile radius if fire becomes uncontrollable Section 5. Reactivity Data ' Stab flit)/PolymerizatIon TEL decomposes slowly at room temperature and rapidly at 125 to 150'C It also decomposes when exposed to sun or allowed to evaporate in air Exposure to air for several days can cause explosive decomposition Hazardous polymerization cannot occur Chemical Incompatibilities.TEL solubilizes fairy materials and has solvent action on rubber It is incompatible with strong oxidizers sulfuryl chlonde potassium permanganate,and rust. ' Conditions to Avoid Exposure to heat, ignition sources sunlight,air,strong oxidizers and other incompatibles Hazardous Products of Decomposition Thermal oxidative decomposition of TEL can produce carbon dioxide(CO.)and toxic lead(Pb)fumes- Section 6 Health Hazard Data Carcinogenicity The IARC t' i NTP(1 0)and OSHA('r)do not list tetraethyl lead as a carcinogen One study showed liver and blood tumors (Hodgkins disease)in mice,termed uruchable because these tumors tend to occur spontaneously at times in this particular strain of mice Summary of Risks Do not confuse the effects of tetraethyl lead(TEL)with those caused by inorganic lead exposure TEL is organic and chile both are water uisoluble,TEL is lipid soluble and easily enters the as brain while inorganic lead compounds can z Neurologic symptoms are more prevalent than any others Tetraethyl lwd has a latency penod from exposure tune to onset of symptoms as it must first be metabolized to[methyl lead before toxicity results The greater the exposure concentration the faster symptoms develop TEL s ability to produce chronic toxicity has been debated for years as is the efficacy of chelation therapy Chronic toxicity was thought not to occur with organic lead compounds because they did not accumulate to the bone like inorganic lead Conamue on next page QVyngla 0 1992 Gx =NN.th &Coda La .her co 4mreul w aa,eprodaq,o Whwt 4e;mW tier i p�m�n pmhibne&