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
Famous quotes containing the word synthesis:
“In order to begin an analysis, there must already be a synthesis present in the mind.”
—Johan Huizinga (1872–1945)
“Our art is the finest, the noblest, the most suggestive, for it is the synthesis of all the arts. Sculpture, painting, literature, elocution, architecture, and music are its natural tools. But while it needs all of those artistic manifestations in order to be its whole self, it asks of its priest or priestess one indispensable virtue: “faith.””
—Sarah Bernhardt (1845–1923)
“If in the opinion of the Tsars authors were to be the servants of the state, in the opinion of the radical critics writers were to be the servants of the masses. The two lines of thought were bound to meet and join forces when at last, in our times, a new kind of regime the synthesis of a Hegelian triad, combined the idea of the masses with the idea of the state.”
—Vladimir Nabokov (1899–1977)