Synthesis of boron

Preparation of elemental boron

Boron is prepared by reduction of boron trioxide with aluminum.

Preparation of boron

Preparation of boron

Proceed as for silicon, using 50 g of dry boron trioxide, 75 g of sulfur, and 100 g of aluminum. About 7.5 g of black metallic crystals (which scratch glass) are obtained. The thinnest crystals show a dark-red color by transmitted light.

Inorganic laboratory preparations, by G. G. Schlessinger, 3, 1962





InChI Key


Canonical SMILES


MeSH Synonyms


Depositor-Supplied Synonyms

BORON, 7440-42-8, Boron, metallic, UNII-N9E3X5056Q, HSDB 4482, EINECS 231-151-2, Boron and compounds, boracium, boranylidyne, bore, boro, AC1NUWBP, BoronStandardMetalSolution, KSC378S2P, 15566_ALDRICH, 15580_ALDRICH, 266620_ALDRICH, 332445_ALDRICH, BORON, 90%, BORON, 95%, 15566_FLUKA, 15580_FLUKA, CHEBI:27560, CTK0H8670, CTK2H8927, MolPort-028-745-793, UORVGPXVDQYIDP-UHFFFAOYSA-N, ZOXJGFHDIHLPTG-UHFFFAOYSA-N, N9E3X5056Q, BORON, 99.15%, AKOS015832923, LS-45117, SC-81633, RT-000102, 11129-13-8, 5B, Bor

Removed Synonyms

Borane, Boron hydride, EPA-E701136, CID5462311, (Cyclopropylmethyl)triphenylphosphonium bromide, D001895, 13283-31-3, 7697-32-7

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