The reaction is exothermic with the free energy at 298K = −515 kJ. In large quantities, the amorphous boron is obtained by reduction of B 2O 3 with magnesium or other electropositive metals at high temperatures.
But GaN and InN may be obtained indirectly by heating the metals with ammonia.
Only boron and aluminum combine directly with nitrogen when heated.It dissolves in acid like nitric acid or sulfuric acid but is unreacted with hydrochloric acid.The amorphous elements of Group 13 (B, Al, Ga, In) burn in the air to form trioxides and nitrides. The amorphous form is more reactive than the crystalline form.Fused sodium hydroxide (NaOH) at 500 ☌ attacks it to form NaBO 2 and hydrogen gas.The crystalline elemental form of boron is chemically very inert and not affected by acids or oxidizing agents.On other hand, another group 13 metal aluminum is very abundant and occupies the third position after oxygen and silicon. Α-rhombohedral, β-rhombohedral, γ-rhombohedral and tetragonalīoron in the Group 13 of the periodic table member occurs in a small amount due to its nucleus being disintegrated by natural bombardment reactions. The Arabic name buraq, which is the name for borax Louis-Josef Gay-Lussac and Louis-Jacques Thénard in Paris, France, and Humphry Davy in 1808 It is used as a semiconductor that conducts electricity at high temperatures like a metal. Pure boron is a high melting solid diamagnetic substance (melting point = 2180 ☌) which is either crystalline black or amorphous brown solid. The name was proposed by Devay by illustrates its source and similarities to carbon.
Moissan in 1892 prepared a rather pure specimen of boron (95 percent) by heating B 2O 3 with magnesium metal. The element itself was isolated in the nineteenth century by Davy, Gay Lussac, and Thenard by electrolysis of moist boric acid. In history, the different civilizations of the world, the compound borax uses as a flux, or prepared glazes and hard glass. It contains two isotopes, 10B (19.6 percent) and 11B (80.4 percent). The small size, high ionization energy, and moderate electronegativity (close to carbon and hydrogen) explain the formation of many exciting and unusual covalent bond or compounds of boron in chemistry.