Although the compound is formally named as the diketone form, pentane-2, 4-dione, the enol form forms a substantial component of the material and is actually the favored form in many solvents.
32.
These include gasses ( methane, acetelene ) liquids, ( pentane, hexane, benzene ) and solids ( Paraffin . ) So there are an infinite number of different molecular combinations of just these two elements.
33.
Some of these gases include heptane, pentane, propane and other hydrocarbons with molecular weights above Methane ( CH4 ) to produce a natural gas fuel which is used to operate the natural gas engines for further pressurized transmission.
34.
The alkanes from pentane ( C 5 H 12 ) to octane ( C 8 H 18 ) are flared off, sold as liquefied petroleum gas under pressure, or used to power the refinery's own burners.
35.
If an alcohol thermometer utilizes a combination of ethyl alcohol, toluene, and pentane, its lower temperature range may be extended to measure temperatures down to as low as " 200 �C (-328 �F ).
36.
Butyllithium is commercially available as solutions ( 15 %, 25 %, 1.5 M, 2 M, 2.5 M, 10 M, etc . ) in alkanes such as pentane, hexanes, and heptanes.
37.
The epoxide cyclohexene oxide and the lactone ?-butyrolactone are reacting to the spiro orthoester spiro-7-9-dioxacyclo [ 4.3 . 0 ] nonane-8, 2'1'- oxacyclo-pentane.
38.
Those that are liquid at ambient conditions ( i . e ., pentane and heavier ) are called " natural gas condensate " ( sometimes also called " natural gasoline " or simply " condensate " ).
39.
The use of the term " paraffin " is a general term and often does not distinguish between pure compounds and mixtures of isomers, i . e ., compounds with the same chemical formula, e . g ., pentane and isopentane.
40.
Mnemonics are also useful, like " Many Equestrian People Buy Pretty Handsome Horses Of Noble Descent " to remember the methane series : ( Methane, Ethane, Propane, Butane, Pentane, Hexane, Heptane, Octane, Nonane, Decane ).
