Inorganic compound

An inorganic compound is typically a chemical compound that lacks C-H bonds, that is, a compound that is not an organic compound, but the distinction is not defined or even of particular interest. An inorganic compound is typically a chemical compound that lacks C-H bonds, that is, a compound that is not an organic compound, but the distinction is not defined or even of particular interest. Inorganic compounds comprise most of the Earth's crust, although the compositions of the deep mantle remain active areas of investigation. Some simple compounds that contain carbon are often considered inorganic. Examples include carbon monoxide, carbon dioxide, carbonates, cyanides, cyanates, carbides, and thiocyanates. Many of these are normal parts of mostly organic systems, including organisms, which means that describing a chemical as inorganic does not obligately mean that it does not occur within living things. Friedrich Wöhler's conversion of ammonium cyanate into urea in 1828 is considered the starting point of modern organic chemistry. The Wöhler synthesis is of great historical significance because for the first time an organic compound (urea) was produced from inorganic precursors (the salt ammonium cyanate). This finding contradicted the then-mainstream theory vitalism, which stated that organic matter possessed a special force or vital force inherent to all things living. Prior to Wöhler's experiment, a sharp boundary was thought to separate organic and inorganic compounds.