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Tetramethyllead

Tetramethyllead structure

CAS No:
75-74-1
Formula:
C4H12Pb
Chemical Name:
Tetramethyllead
Synonyms:
Plumbane,tetramethyl-;Lead,tetramethyl-;Tetramethylplumbane;Tetramethyllead
Categories:
Organic Chemistry > Organometallic Compounds

Description

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

Tetramethyllead Basic Attributes

Molecular Weight：

267.34

Exact Mass：

267.34

EC Number：

200-897-0

Characteristics

PSA：

XLogP3：

6.2

Appearance：

Tetramethyllead appears as 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. (EPA, 1998)

Density：

199.5 g/cm³

Melting Point：

-27.5 °C

Boiling Point：

110 °C @ Press: 10 Torr

Flash Point：

100°F

Refractive Index：

n20/D 1.497

Water Solubility：

H2O: insoluble

Vapor Pressure：

Vapour pressure, kPa at 20°C: 3.0

Vapor Density：

6.5

Flammability characteristics：

Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.

Explosive limit：

vol% in air: 1.8

Odor：

Fruity odor

Safety Information

Packing level：

Hazard category：

6.1(a)

Transport codes：

UN 1649

hazard class code：

61-10-26/27/28-33-38-50/53-62

safety instructions：

53-26-28-36/37/39-45-60-61

RTECS Number：

TP4725000

Marks：

T+;N

Storage features：

Fireproof. Separated from strong oxidants, strong acids and food and feedstuffs. Cool. Well closed. Store in an area without drain or sewer access.

Stability/Shelf Life：

Stable. Flammable. Incompatible with strong oxidizing agents. Heat sensitive.

Precautionary statement(s)：

P201, P202, P260, P262, P264, P270, P271, P280, P281, P284, P301+P310, P302+P350, P304+P340, P308+P313, P310, P314, P320, P321, P322, P330, P361, P363, P403+P233, P405, P501

Hazard Statements：

H300

Tetramethyllead Use and Manufacturing

Anti-knock motor fuel additive

Computed Properties

Molecular Weight:267
Exact Mass:268.07055
Monoisotopic Mass:268.07055
Heavy Atom Count:5
Complexity:19.1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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75-74-1 Tetramethyl lead

CAS No.: 75-74-1

Grade: Industrial Grade

Content: 99.0%

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