Boron is a non-metallic element which occurs in several allotropes. It is rarely found in nature, normally occurring as borates or orthoboric acid. Hard yellow crystals or brown amorphous powder. Amorphous boron is the more common allotrope and exists as a dark powder which is unreactive towards water, oxygen, acids and alkalis. Boron finds importance within nuclear reactors due to its neutron absorbing capabilities, boron steel being used as control rod material. Boron compounds are used for a number of applications including the manufacture of certain grades of glass and detergents. Boron will react directly with most metals to produce metal borides which are hard, inert binary compounds of various formulae and arrangements of the boron atoms.
- Commonly used as the dopant in photovoltaic devices or cell material.
- 1808 by L.J. Lussac and L.J. Thenard (in Paris) and Sir Humphrey Davy (in London).
- 10ppm in the earth’s crust. The principal ore is borax, Na2 B4 O7 .xH2 O
|Atomic / Molecular Weight||10.811||gmol-1||Clip|
|Specific heat capacity||1030||Jkg-1K-1||Clip|