Teraethyl lead (CAS: 78-00-2)

Tetraethyl lead is a metal organic compound, its structure is a lead atom

and four ethyl molecules together.

Once widely used as additive tetraethyl lead in gasoline, in order to improve

the fuel octane number, in order to prevent the stun occurs in the engine, so that

they can use the higher compression ratio, in order to improve the efficiency of

car engines and power. Initially using tetraethyl lead additives in the United States,

compared with the first use of alcohol as additive of Europe. Leaded gasoline from

its high energy content and the advantages of high storage quality, eventually became

the universal use of fuel additives. One of the biggest advantages of tetraethyl lead than

other antiknock agent or use high octane number gasoline mixture proportion, need only

a very low concentration, to increase the octane value of the fuel. The typical preparation

methods, is a fluid of ethyl (containing tetraethyl lead) untreated gasoline added to 1260

points. Other antiknock agent must, in a relatively large amounts of weight and/or are

lower than those of the energy value of natural gas. High energy values of leaded gasoline

will have greater fuel efficiency.

When alcohol is used as antiknock, absorbs moisture will cause the fuel and air, high humidity

fuel can lead to fuel pipes, rust and corrosion. And tetraethyl lead is more soluble in gasoline,

ethanol is soluble in gasoline, and solubility increases with fuel moisture. With the passage of

time, the water droplets and water moisture can be formed in the fuel system of fuel pipes freeze.

In addition fuel high humidity also can appear biological pollution, due to certain bacteria on the

surface of the water and gasoline breeding, thus cause bacterial growth in fuel system. Tetraethyl

lead toxicity, make its bactericidal properties, helps to prevent fuel pollution and caused oil

degradation bacteria growth. The compounds are commonly used in automobile gasoline additives,

improve the octane number, for the use of seismic explosive, so as to prolong the life of the parts.

Its combustion produces solid lead oxide and lead a solid metal lead and lead oxide can rapidly

accumulating inside the engine, damage to the parts in the engine.

Application:used in automobile gasoline additives, improve the octane number, for the use

of seismic explosive, so as to prolong the life of the parts.