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78-00-2

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Basic Information
CAS No.: 78-00-2
Name: TETRAETHYLLEAD
Article Data: 109
Molecular Structure:
Molecular Structure of 78-00-2 (TETRAETHYLLEAD)
Formula: C8H20 Pb
Molecular Weight: 323.447
Synonyms: Lead,tetraethyl-; NSC 22314; TEL; Tetraethyllead; Tetraethylplumbane
EINECS: 201-075-4
Density: 1.653 g/mL at 25 ºC(lit.)
Melting Point: -136.8 C
Boiling Point: 84 - 85 C (Decomposes)
Flash Point: 77 C
Solubility: Insoluble Light yellow liquid
Hazard Symbols:
Risk Codes: 61-26/27/28-33-50/53-62-38-10
Transport Information: 250kgs
PSA: 0.00000
LogP: 3.51480
Synthetic route
79110-50-2

(η5-cyclopentadienyl)W(CO)3PbEt3

A

79123-28-7

{(η5-cyclopentadienyl)W(CO)3}2PbEt2

B

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
heated in vac. to 60°C for 8 h, under nitrogen, yellow-orange liquid became solid and darker orange in colour; dissolved in CH2Cl2/hexane solution, placed upon alumina column, elutedwith hexane, then hexane/CH2Cl2 solution, concentrated and placed refrigerator;A 58%
B n/a
79110-53-5

(η5-cyclopentadienyl)Mo(CO)3PbEt3

A

[(η5-C5H5)Mo(CO)3]2Pb(C2H5)2

B

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
Irradiation (UV/VIS); 12 h;A 50%
B n/a
74-96-4

ethyl bromide

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
With pyridine; lead sodium
With pyridine; tetrasodium-monoplumbide; water at 38℃;
With lead; sodium at 70℃; im geschlossenen Gefaess;
64-67-5

diethyl sulfate

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
With lead sodium; water; toluene; potassium iodide
74-85-1

ethene

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
With lead sodium; hydrogen at 100℃; under 7355.08 Torr;
75-00-3

chloroethane

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
With lead; lead(II) iodide at 100 - 130℃;
With lead sodium
With hydrogenchloride; lead sodium
811-49-4

ethyllithium

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
With lead(IV) chloride; Petroleum ether anfangs unter Kuehlung;
925-90-6

ethylmagnesium bromide

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
With PbS
With lead(II) chloride
With lead(II) oxide
557-20-0

diethylzinc

676-54-0

ethyl sodium

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
Electrolysis.an einer Bleianode;
557-20-0

diethylzinc

78-00-2

tetraethyllead(IV)

Conditions
ConditionsYield
With lead(II) chloride
With lead(II) chloride
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Chemistry


IUPAC Name: tetraethylplumbane
Molecular Formula:C8H20Pb
Molecular Weight:323.4444
Appearance:colorless, viscous liquid
Melting Point:136 °C(lit.)
Boiling Point:84-85 °C15 mm Hg(lit.)
density:1.653 g/mL at 25 °C(lit.)
refractive index:n20/D 1.519(lit.)
Fp:84 °F
Solubility:slightly soluble in ethanol;
soluble in benzene, petroleum ether, toluene, gasoline 
Insolubility:Water
Synonyms of TETRAETHYL LEAD(78-00-2):TEL;TETRAETHYLLEAD;
(C2H5)4Pb;Czteroetylek olowiu;czteroetylekolowiu;czteroetylekolowiu(polish);Lead tetraethyl;lead,tetraethyl-
Categories of TETRAETHYL LEAD(78-00-2): Organometallics;Organolead;Organometallic Reagents;Others
Merck  13,9277

Uses

TETRAETHYL LEAD(78-00-2) is used as an antiknock agent.

Production

TETRAETHYL LEAD(78-00-2) is produced by reacting chloroethane with a sodium–lead alloy.
4 NaPb + 4 CH3CH2Cl → (CH3CH2)4Pb + 4 NaCl + 3 Pb

Toxicity Data With Reference

1.   

otr-ham:emb 12,500 µg/L

   AETODY    Advances in Modern Environmental Toxicology. 1 (1980),241.
2.   

ihl-hmn TCLo:1749 g/m3/30M:NOSE,EYE,GIT

   SAIGBL    Sangyo Igaku. Japanese Journal of Industrial Health. 17 (1975),223.
3.   

unr-man LDLo:1470 µg/kg

   85DCAI    Poisoning; Toxicology, Symptoms, Treatments. 2 (1970),73.
4.   

orl-rat LD50:12,300 µg/kg

   EXPEAM    Experientia. 28 (1972),923.
5.   

ihl-rat LC50:850 mg/m3/60M

   BJIMAG    British Journal of Industrial Medicine. 18 (1961),277.
6.   

ipr-rat LD50:15 mg/kg

   MELAAD    Medicina del Lavoro. Industrial Medicine. 54 (1963),486.
7.   

ivn-rat LD50:14,400 µg/kg

   MELAAD    Medicina del Lavoro. Industrial Medicine. 54 (1963),486.
8.   

par-rat LD50:15 mg/kg

   AOHYA3    Annals of Occupational Hygiene. 3 (1961),226.
9.   

ihl-mus LCLo:650 mg/m3/7H

   SAIGBL    Sangyo Igaku. Japanese Journal of Industrial Health. 15 (1973),3.
10.   

skn-dog LDLo:547 mg/kg

   SAIGBL    Sangyo Igaku. Japanese Journal of Industrial Health. 15 (1973),3.

Consensus Reports

IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 230.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 23 ,1980,p. 325.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 2 ,1973,p. 150.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Safety Profile

Safety Information of TETRAETHYL LEAD(78-00-2):
Human poison by an unspecified route. Experimental poison by ingestion, intraperitoneal, intravenous, subcutaneous, and parenteral routes. Moderately toxic by inhalation and skin contact. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. Lead compounds are particularly toxic to the central nervous system. It is a solvent for fatty materials and has some solvent action on rubber as well. The fact that it is a lipoid solvent makes it an industrial hazard because it can cause intoxication not only by inhalation but also by absorption through the skin. Decomposes when exposed to sunlight or allowed to evaporate; forms triethyl lead, which is also a poisonous compound, as one of its decomposition products. May cause elemental lead intoxication by coming in contact with the skin.
A combustible liquid when exposed to heat, flame, or oxidizers. Can react vigorously with oxidizing materials. Exposure to air for several days may cause explosive decomposition. To fight fire, use dry chemical, CO2, mist, foam. When heated to decomposition it emits toxic fumes of Pb. See also LEAD COMPOUNDS.
Hazard Codes  T+,N
Risk Statements  61-26/27/28-33-50/53-62-38-10
Safety Statements  53-45-60-61-36/37-26
RIDADR  UN 1649 6.1/PG 1
WGK Germany  3
RTECS  TP4550000
TSCA  Yes
HazardClass  6.1(a)
PackingGroup  I

Standards and Recommendations

OSHA PEL: TWA 0.075 mg(Pb)/m3 (skin)
ACGIH TLV: TWA 0.1 mg(Pb)/m3 (skin); Not Classifiable as a Human Carcinogen
DFG MAK: 0.05 mg/m3
DOT Classification:  6.1; Label: Poison, Flammable Liquid

Analytical Methods

For occupational chemical analysis use NIOSH: Tetraethyl Lead (as Pb), 2533.