Synthesis
Boron nitride has not been found in nature and therefore is produced synthetically. The most common raw materials for BN synthesis, boric acid and boron trioxide, are produced on industrial scales by treating the minerals borax and colemanite with sulfuric acid or hydrochloric acid:
- Na2B4O7·10H2O (borax) + H2SO4 → 4 H3BO3 (boric acid) + Na2SO4 + 5 H2O
Boron trioxide is obtained by heating boric acid:
- 2 H3BO3 → B2O3 + 3 H2O
Read more about this topic: Boron Nitride
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