What is the chemical formula for petroleum?

What is the chemical formula for petroleum?

WHAT IS PETROLEUM? The cycloalkanes, also known as naphthenes, are saturated hydrocarbons which have one or more carbon rings to which hydrogen atoms are attached according to the formula CnH2n.

What are the elements present in petroleum?


Element Percent range
Carbon 83 to 85%
Hydrogen 10 to 14%
Nitrogen 0.1 to 2%
Oxygen 0.05 to 1.5%

Is gasoline derived from petroleum?

Gasoline is a fuel made from crude oil and other petroleum liquids.

What forms of sulfur are found in petroleum?

Crude oils contain sulphur heteroatoms in the form of elemental sulphur S, dissolved hydrogen sulphide H2S, carbonyl sulphide COS, inorganic forms and most importantly organic forms, in which sulphur atoms are positioned within the organic hydrocarbon molecules.

Does petroleum contain oxygen?

The oxygen content of crude oil is usually less than 2 percent by weight and is present as part of the heavier hydrocarbon compounds in most cases. For this reason, the heavier oils contain the most oxygen. Nitrogen is present in almost all crude oils, usually in quantities of less than 0.1 percent by weight.

What impurities are common in petroleum?

Petroleum, a mixture of carbon, hydrogen and oxygen (called hydrocarbons), is seldom found in nature in a pure form without impurities. Of the three major impurities, sulfur, nitrogen, and oxygen, sulfur is seldom absent from crude oil and can be found even in minute amounts.

What are the dangers of petroleum hydrocarbons?

Swallowing some petroleum products such as gasoline and kerosene causes irritation of the throat and stomach, central nervous system depression, difficulty breathing, and pneumonia from breathing liquid into the lungs.

Is petroleum found underground?

Petroleum—or crude oil—is a fossil fuel that is found in large quantities beneath the Earth’s surface and is often used as a fuel or raw material in the chemical industry. It is a smelly, yellow-to-black liquid and is usually found in underground areas called reservoirs.

Are petroleum products organic?

Petroleum is a naturally occurring, flammable liquid found within rock formations in the earth, and is comprised of a mixture of hydrocarbons and other organic compounds. In other words, we can think of oil (or gas or coal) as organic material that is prevented from complete decay.

Which country has highest tax on fuel?

India has the highest tax on fuel – 260 per cent on the base price of petrol, and 256 per cent for diesel, according to CARE ratings. In Germany and Italy, the tax on fuel is 65 per cent of the retail price.