From here: Naphtha - Wikipedia, the free encyclopedia
Naphtha ( /ˈnæfθə/ or /ˈnæpθə/) normally refers to a number of different flammable liquid mixtures of hydrocarbons, i.e., a component of natural gas condensate or a distillation product from petroleum, coal tar or peat boiling in a certain range and containing certain hydrocarbons. It is a broad term covering among the lightest and most volatile fractions of the liquid hydrocarbons in petroleum. Naphtha is a colorless to reddish-brown volatile aromatic liquid, very similar to gasoline.
In petroleum engineering, full range naphtha is defined as the fraction of hydrocarbons in petroleum boiling between 30 °C and 200 °C. It consists of a complex mixture of hydrocarbon molecules generally having between 5 and 12 carbon atoms. It typically constitutes 15–30% of crude oil, by weight. Light naphtha is the fraction boiling between 30 °C and 90 °C and consists of molecules with 5–6 carbon atoms. Heavy naphtha boils between 90 °C and 200 °C and consists of molecules with 6–12 carbons.
Naphtha is used primarily as feedstock for producing high octane gasoline (via the catalytic reforming process). It is also used in the bitumen mining industry as a diluent, the petrochemical industry for producing olefins in steam crackers, and the chemical industry for solvent (cleaning) applications. Common products made with it include lighter fluid, fuel for camp stoves, and some cleaning solvents.
From here: Chemical formula of acetone
Acetone belongs to a group of organic molecules called ketones or alkanones. The proper name acetone is propanone. It is also sometimes called 2-propanone.
Acetone is an organic liquid that is colorless, flammable and is often used as a solvent as it is completely miscible with water and nearly all other organic liquids. Acetone has a low boiling point 56.5 °C or 134 °F and readily vaporizes and has a distinctive odor.
The molecular formula for acetone is C3H6O. The condensed structural formula of acetone is OC(CH3)2