Carbon compounds are chemical compounds that contain carbon. They exist in the gaseous, liquid, and solid phases, although most compounds containing carbon are solids. They occur naturally and form the basis of life on earth, but they are also manufactured by humans. Carbon compounds are among the most important substances to humans, as they are the building blocks for many essential materials such as plastics and pharmaceuticals. In addition, they form the basis for organic chemistry and much of biochemistry.
Carbon is the fourth most abundant element in the universe and one of the most versatile elements. It is present in all known living creatures, in the entire atmosphere of Earth, in many minerals, and in many other substances found in the natural world. It is present in nearly every type of molecule, including all carbohydrates, proteins, lipids, and nucleic acids.
At the atomic level, carbon is tetravalent, meaning it has four electrons that allow it to form covalent bonds with other elements. This allows it to form a variety of molecules, such as hydrocarbons, alcohols, aldehydes, ketones, carboxylic acids, and many others. Carbons ability to form these myriad molecules makes it a vital component of all living things and of the vast diversity of organic compounds found in nature.
Carbon is also a component of some of the most chemically stable compounds, such as diamond and graphite. Diamond is the hardest known substance and is composed entirely of carbon atoms bonded together in a tetrahedral lattice. Graphite, another form of carbon, is also a very stable compound, with atoms arranged in a hexagonal lattice. Graphite is an important component of many products, including pencils, carbon paper, and batteries.
In recent years, scientists have developed a number of synthetic carbon compounds, such as graphene and synthetic diamond. Graphene is a two-dimensional form of carbon that is an extremely strong and light material, with applications ranging from consumer electronics to medical devices. Synthetic diamond, meanwhile, is a diamond-like material that has been developed for use in a variety of industrial applications.
Carbon compounds are ubiquitous and have a variety of uses in everyday life. They form the basis of all matter, are used in the production of products ranging from plastics to pharmaceuticals, and are integral to the development of renewable energy sources such as solar and wind power.