Plastic is derived from organic substances including crude oil, salt, cellulose, coal and natural gas. Crude oil, one of the main ingredients of plastic, is a complex compound that must be broken down into fractions (mix... More »

The density of polycarbonate is 1.2 grams per cubic centimeter, determined by dividing the mass by the volume when the polycarbonate is at standard temperature and pressure (STP) conditions. STP assumes a temperature of ... More » Science Chemistry

Some chemical hand warmer ingredients include cellulose, iron, water, activated carbon vermiculite, salt, charcoal and lighter fuel. There are different kinds of chemical hand warmers, and ingredients vary depending on w... More » Science Chemistry

Road tar is made from a mixture of hydrocarbons produced by processing crude oil or natural gas. Bitumen is the remnant of crude oil after the gasoline, kerosene, diesel oil and other fuels have been removed. More »

Petrochemicals are organic chemicals made from crude oil and natural gas for use in industrial processes. Examples of primary petrochemicals include methanol, ethylene, propylene, butadiene, benzene, toluene and xylene. ... More »

Propane is separated from crude oil during the refining process and extracted from natural gas at a gas processing plant. It is considered a fossil fuel because it was formed from the remains of sea animals and plants. W... More »

Substances that store chemical energy are primarily fuels such as coal, wood, natural gas, petroleum and propane, as well as foods, batteries and matches. Encyclopædia Britannica defines chemical energy as energy stored ... More »