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Tetramethyllead

Product Name
Tetramethyllead
CAS No.
75-74-1
Chemical Name
Tetramethyllead
Synonyms
(CH3)4Pb;tetramethyl-lea;Bleitetramethyl;Tetramethylolovo;Lead tetramethyl;Tetramethyl lead;tetramethyleplomb;piombotetra-metile;Tetramethylplumbane;tetramethyl-plumban
CBNumber
CB7397451
Molecular Formula
C4H12Pb
Formula Weight
267.34
MOL File
75-74-1.mol
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Tetramethyllead Property

Melting point:
-27.5°C
Boiling point:
110°C
Density 
1.3 g/mL at 25 °C
refractive index 
n20/D 1.497
Flash point:
37.7°C
form 
liquid
Water Solubility 
insoluble
Stability:
Stable. Flammable. Incompatible with strong oxidizing agents. Heat sensitive.
NIST Chemistry Reference
Lead, tetramethyl-(75-74-1)
EPA Substance Registry System
Tetramethyllead (75-74-1)
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Safety

Hazard Codes 
T+,N
Risk Statements 
61-10-26/27/28-33-38-50/53-62
Safety Statements 
53-26-28-36/37/39-45-60-61
RIDADR 
UN 1649
OEB
D
OEL
TWA: 0.075 mg/m3 [skin]
HazardClass 
6.1(a)
PackingGroup 
I
Hazardous Substances Data
75-74-1(Hazardous Substances Data)
IDLA
40 mg Pb/m3
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H226Flammable liquid and vapour

H360May damage fertility or the unborn child

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P314Get medical advice/attention if you feel unwell.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

American Custom Chemicals Corporation
Product number
OGM0002471
Product name
TETRAMETHYL LEAD
Purity
95.00%
Packaging
5MG
Price
$495.66
Updated
2021/12/16
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Tetramethyllead Chemical Properties,Usage,Production

Chemical Properties

Tetramethyl lead is a colorless liquid with a slight musty odor. In commerce it is usually dyed red, orange or blue.

Chemical Properties

Tetramethyl lead is a flammable, colourless liquid with a slightly sweet odour. Tetramethyl lead is insoluble in water but is soluble in most organic solvents, alcohol, benzene, and petroleum ether. Tetramethyl lead is incompatible with tetrachloro trifluoromethyl phosphorus, strong oxidisers, sulphuryl chloride, and potassium permanganate. Tetramethyl lead on hazardous decomposition releases toxic gases and particulates, such as lead fumes and carbon monoxide. It may cause fires and explosions. The commercial product is often dyed red, orange, or blue. Tetramethyl lead is frequently mixed with smaller amounts of ethylene dibromide, ethylene dichloride, dyes, kerosene, stabilisers, and inert substances.

Uses

Gasoline additive, especially to aviation and premium grades with high aromatic content。

Uses

Anti-knock motor fuel additive

Definition

ChEBI: Tetramethyllead is an organolead compound.

General Description

Colorless liquid, dyed red, orange or blue. Has a slight musty odor. Used as an antiknock additive for gasolines; component of mixed alkyl leads for gasoline additives.

Air & Water Reactions

Highly flammable.

Reactivity Profile

Tetramethyllead is sensitive to heat. Tetramethyllead can react with strong oxidizers.

Hazard

Flammable, moderate fire risk. Toxic by ingestion, inhalation, and skin absorption. Lower explosion level 1.8%. Central nervous system impairment. Questionable carcinogen.

Health Hazard

Vapors are very toxic. Fatal lead poisoning may occur by ingestion, vapor inhalation or skin absorption. Several cases of acute toxicity, usually in the form of degenerative brain disease, have been described following occupational exposure.

Fire Hazard

Thermal decomposition is likely to take the form of vapors at the surface. Rapid decomposition will cause container to explode. Dangerous fire hazard when exposed to heat, flame, or oxidizers. Toxic gases are generated in fire. Avoid strong oxidizers such as sulfuryl chloride or potassium permanganate. Avoid fire, heat, physical damage, and strong oxidizers. Starts to decompose at about 212F. If confined, may explode or detonate at high temperatures. Hazardous polymerization may not occur.

Safety Profile

Poison by ingestion, intraperitoneal, parenteral, and intravenous routes. Moderately toxic by skin contact. An experimental teratogen. Experimental reproductive effects. Lead and its compounds have dangerous central nervous system effects. A flammable liquid and very dangerous fire hazard when exposed to heat, flame, or oxidizers. Moderate explosion hazard in the form of vapor when exposed to flame. May explode when heated above 90℃. Explosive reaction with tetrachlorotrifluoromethyl phosphorane. Can react vigorously with oxidzing materials. To fight fire, use water, foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of Pb. Used as an octane enhancer for gasoline. See also LEAD COMPOUNDS.

Potential Exposure

Those engaged in the manufacture, distribution, and blending into gasoline of this antiknock agent for aviation gasoline.

Carcinogenicity

TML was not mutagenic in a number of bacterial strains with or without metabolic activation.

Shipping

UN1649 Motor fuel antiknock mixtures, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Highly flammable liquid; Vapors may form explosive mixture with air. Violent reaction with oxidizers, such as sulfuryl chloride or potassium permanganate; strong acids; especially nitric acid; chemically active metals. Decomposes and may explode in heat above 90C. Attacks rubber.

Waste Disposal

Controlled incineration with scrubbing for collection of lead oxides which may be recycled or landfilled. It is also possible to recover alkyl lead compounds from wastewaters (A-58) as an alternative to disposal.

Tetramethyllead Preparation Products And Raw materials

Raw materials

Preparation Products

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Tetramethyllead Suppliers

INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
Hubei xin bonus chemical co. LTD
Tel
86-13657291602
Fax
027-59338440
Email
linda@hubeijusheng.com
Country
CHINA
ProdList
22963
Advantage
58
Shaanxi Dideu Medichem Co. Ltd
Tel
029-81145920 13259709322
Fax
029-88380327
Email
1027@dideu.com
Country
China
ProdList
10009
Advantage
58

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