Natural rubber is made from the sap of a tree, and synthetic rubber is created from chemicals found in petroleum. Rubber trees first originated in South America, and the sap is called latex. The latex oozes from the bark of the rubber tree and can be easily collected to form balls or other objects.
A French explorer named Charles de la Condamine was the first to take latex from Peru and bring it home in 1735. In 1770, a chemist discovered that the latex "rubbed" out pencil marks, and the material was appropriately named rubber. In the 1820s, Thomas Hancock developed a machine that molded scraps of latex into a solid mass. From there, rubber processing developed, and it began to be used to make different products. Scientists discovered that latex could be added to turpentine to create a liquid that waterproofs fabric. In 1832, Charles Macintosh created the first raincoats by layering rubber between two pieces of cloth. Soon after, rubber shoes, elastic bands, hoses and tubes were made. However, it was discovered that these products got stiff in cold weather and sticky in hot weather. When Charles Goodyear developed a way to strengthen rubber and make it less vulnerable to heat and cold, the possibilities of products increased, and rubber became a common material in parts of moving machinery.Learn More
In the United States and Australia, LPG is made up of liquid propane, but this is not true in all countries. LPG stands for liquefied petroleum gas. In some places, a mixture of butane and propane or other hydrocarbons are labeled LPG as well.Full Answer >
Liquefied Petroleum Gas (LPG) is made up of a combination of propane, butane, and trace amounts of other chemicals, including pentane. Butane comprises slightly less than 70 percent of the gas. Propane comprises nearly 29 percent of the gas, leaving just over 1 percent for the trace components.Full Answer >
Petrol is made from unprocessed crude oil, also known as petroleum. The name "petrol" often refers to the unprocessed crude oil and the processed products made up of this type of oil.Full Answer >
Kerosene and diesel are made up of long, flammable hydrocarbon molecules derived from crude oil, which is also known as petroleum. Kerosene is made up of a mixture of carbon chains with between six and 16 carbon atoms per chain. Diesel fuels are heavier, with anywhere from eight to 21 carbon atoms per chain. Both are liquid at room temperature, but diesel fuel has a higher boiling point.Full Answer >