enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Octane - Wikipedia

    en.wikipedia.org/wiki/Octane

    Octane is commonly used as a solvent in paints and adhesives. N-octane is the octane isomer that has the longest carbon skeleton. Unlike its constitutional isomers, it has a very low knock resistance. The octane isomer, iso-octane, is used as one of the standards for octane ratings. It has a rating of 100 by definition.

  3. Octane rating - Wikipedia

    en.wikipedia.org/wiki/Octane_rating

    Octane isomers such as n-octane and 2,3,3-trimethylpentane have an octane rating of -20 and 106.1, respectively (RON measurement). [79] The large differences between the octane ratings for the isomers show that the compound octane itself is clearly not the only factor that determines octane ratings, especially for commercial fuels consist of a ...

  4. 2,2,4-Trimethylpentane - Wikipedia

    en.wikipedia.org/wiki/2,2,4-Trimethylpentane

    2,2,4-Trimethylpentane, also known as isooctane or iso-octane, is an organic compound with the formula (CH 3) 3 CCH 2 CH(CH 3) 2.It is one of several isomers of octane (C 8 H 18).This particular isomer is the standard 100 point on the octane rating scale (the zero point is n-heptane).

  5. Gasoline - Wikipedia

    en.wikipedia.org/wiki/Gasoline

    A low octane rated fuel may cause engine knocking and reduced efficiency in reciprocating engines. Tetraethyl lead and other lead compounds were once widely used as additives to increase the octane rating, but are not used in modern automotive gasoline due to the extreme health hazard, except in aviation, off-road motor vehicles, and racing car ...

  6. Antiknock agent - Wikipedia

    en.wikipedia.org/wiki/Antiknock_agent

    Antiknock agent. An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating by raising the temperature and pressure at which auto-ignition occurs. The mixture known as gasoline or petrol, when used in high compression internal combustion engines, has a tendency to knock (also called "pinging ...

  7. Heptane - Wikipedia

    en.wikipedia.org/wiki/Heptane

    Heptane or n-heptane is the straight-chain alkane with the chemical formula H 3 C (CH 2) 5 CH 3 or C 7 H 16. When used as a test fuel component in anti-knock test engines, a 100% heptane fuel is the zero point of the octane rating scale (the 100 point is 100% iso-octane). Octane number equates to the anti-knock qualities of a comparison mixture ...

  8. 1-Octene - Wikipedia

    en.wikipedia.org/wiki/1-Octene

    1-Octene is an organic compound with a formula CH 2 CHC 6 H 13.The alkene is classified as a higher olefin and alpha-olefin, meaning that the double bond is located at the alpha (primary) position, endowing this compound with higher reactivity and thus useful chemical properties. 1-Octene is one of the important linear alpha olefins in industry.

  9. Natural gasoline - Wikipedia

    en.wikipedia.org/wiki/Natural_gasoline

    Natural gasoline is a liquid hydrocarbon mixture condensed from natural gas, similar to common gasoline (petrol) derived from petroleum. The chemical composition of natural gasoline is mostly five- and six-carbon alkanes (pentanes and hexanes) with smaller amounts of alkanes with longer chains. [1] It contains significant amounts of isopentane ...