1-Decene?????

[JohnBrowning]

Is this one of the older diesters? I ask because Quaker State synthetic is made from it!

 

[Bob Woods]

In the Americas region, ethylene is produced by cracking either ethane, a combination of light feedstocks (ethane, propane or butane) or by cracking heavy liquid fuels (light naphtha/natural gasoline or heavy naphtha). A colorless, odorless, nontoxic, yet flammable gas, ethylene is a constituent of natural gas and petroleum (75% Methane, 25% Ethane, Propane, and Butane). These “fossil fuels” were formed through the decomposition of organic matter over thousands of years and today provide a major energy source. Large amounts of the element may also be located in the atmospheres of Saturn and Jupiter. Although butane is a gas at room temperature, the primary products,1-hexene, 1-octene and 1-decene, are typically clear, colorless, water-white liquids. These are normally produced and sold as pure (99+ wt.%) products, but are often blended to meet customers specifications. The increase in PAO applications is largely driven by the stability of the PAO molecule, a highly purified ethylene derivative. This stability, along with a host of other unique performance characteristics, makes PAOs far superior to mineral oils in a variety of uses. PAOs are specially designed chemicals that are uniquely made from alpha olefins. These stable molecules are produced by: Steam cracking hydrocarbons to produce ultra high-purity ethylene Ethylene oligomerization to develop 1-decene and 1-dodecene Decene or dodecene oligomerization to form a mixture of dimers, trimers, tetramers and higher oligomers PAOs have many advantages over mineral oils: Greater oxidative stability Superior volatility Excellent low-temperature viscosities Consistent, quality basestock Extremely high viscosity index Excellent pour points Freedom from impurities

 

[palmerwmd]

1-decene is a ten membered Alpha Olefin. Imagine ten carbons arranged in a chain each bonded to one other, on each side and to 2 Hydrogens above and below the chain (except at ends when only one C is bonded and the extra bond is taken by an extra H) Exceptions are the number 1 and 2 carbons with use up two bonds on each other and each get one less H than they usually would. Hence the "-ene" in the name denoting a double bond between carbons and the "1" means its the first double bond, ie at the "1" position. This is also called the alpha position, and a hydrocarbon with a double bond in it is called an olefin in the nomenclature of german organic chemists early in the 20th Century, which has never completly fallen out of use. The 1 Decene is a modern way to say it. Fred..

 

[Ray H]

Just to quell any lingering confusion in spite of the above two excellent posts, 1-decene is NOT an ester.

 

[palmerwmd]

Alcon: That's correct, it is a 1-Alkene, an Ester has a different fucntional group. In Alkenes the functional group is this: >C=C<, Carbon double bonded with each other and two bonds on each side free for other bonds. -C-[C=O]-O-C- is the functional group for an ester, where the area in parenthesis is bonded via the C and the O is generally represented as above or below the plane Fred.. [ November 28, 2003, 08:38 PM: Message edited by: palmerwmd ]