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78-00-2

78-00-2 structural image
Product Name: TETRAETHYLLEAD
Formula: C8H20Pb
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Tetraethyl lead, liquid appears as a colorless liquid with a characteristic odor. Flash point 163 °F. Density 14 lb / gal. Insoluble in water. Toxic by inhalation and by skin absorption.
Color/Form Colorless, oily liquid
Odor Musty odor
Boiling Point 392 °F at 760 mmHg Decomposes between 230 - 392 °F. (EPA, 1998)
Melting Point -202 °F (EPA, 1998)
Flash Point 200 °F (EPA, 1998)
Solubility less than 1 mg/mL at 70 °F (NTP, 1992)
Density 1.653 at 68 °F (EPA, 1998) - Denser than water; will sink
Vapor Density 8.6 (EPA, 1998) - Heavier than air; will sink (Relative to Air)
Vapor Pressure 0.2 mmHg at 68 °F (EPA, 1998)
LogP log Kow = 4.15
Henry's Law Constant Henry's Law constant = 0.568 atm cu-m/mol at 24 °C
Stability/Shelf Life DECOMP SLOWLY @ ROOM TEMP & MORE RAPIDLY @ ELEVATED TEMP
Autoignition Temperature 230 °F (USCG, 1999)
Decomposition Failure to cover the residue with water after emptying a tank of the compound caused explosive decomposition after several days.
Viscosity 2.2899X10-2 Pa/sec at 225 K
Corrosivity Some solvent action on rubber
Heat of Combustion -5.8995X10+9 J/kmol
Heat of Vaporization 6.5581X10+7 J/kmol at 139.41 K
Surface Tension 4.4233X10-2 N/m at 139.41 K
Ionization Potential 11.10 eV
Refractive Index Index of refraction = 1.5198 at 20 °C/D
Relative Evaporation Rate 0.032 g/sq m.sec (at 20 °C and a wind speed of 4.5 m/s)
Kovats Retention Index 1160
Other Experimental Properties Standard molar enthalpy of formation at 25 °C = 52.7 kJ/mol (liquid), 109.6 kJ/mol (gas); Standard molar entropy at 25 °C = 464.6 J/mol-K (liquid); Standard molar heat capacity at 25 °C = 307.4 J/mol-K
Chemical Classes Metals -> Metals, Organic Compounds

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Skull and Crossbones
Acute Toxicity
GHS06

Health Hazard
GHS08

Environment
GHS09
GHS Hazard Statements H373:Specific target organ toxicity, repeated exposure
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P201:Obtain special instructions before use.
P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P308+P313:IF exposed or concerned: Get medical advice/attention.
P403+P233:Store in a well-ventilated place. Keep container tightly closed.

COMPUTED DESCRIPTORS

Molecular Weight 323 g/mol
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 0
Rotatable Bond Count 4
Exact Mass 324.13315 g/mol
Monoisotopic Mass 324.13315 g/mol
Topological Polar Surface Area 0 Ų
Heavy Atom Count 9
Formal Charge 0
Complexity 47.5
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Tetraethyl lead, liquid appears as a colorless liquid with a characteristic odor. Flash point 163 °F. Density 14 lb / gal. Insoluble in water. Toxic by inhalation and by skin absorption.