The discovery and use of boron compounds can be traced back to ancient Egypt, where borax was used as a flux for glass and also by ancient alchemists, but the chemical composition of boric acid remained a mystery until the early 19th century.
In 1808, British chemist David in the electrolytic method of potassium soon after the discovery of brown boron, and electrolytic melting of boron trioxide method of brown boron, in the same year, French chemist Gay-Lussac and Tainer used metal potassium to reduce anhydrate boric acid to produce elemental boron.
In fact, none of them produced pure boron, and extremely pure boron is almost impossible to obtain. A purer boron was extracted by Henry Moisan in 1892. Eventually, E. Weintraub of the United States ignited a mixture of boron chloride vapors and hydrogen to produce a completely pure boron. Boron obtained from this substance was found to be of a very different nature than previously reported.
