Boron (B)
Boron (B)
Boron compounds have been known for thousands of years, but the element was not discovered until 1808. It is not found free in nature, but as orthoboric acid in volcanic spring waters and as borates. Important sources are the ores rasorite (kernite) and tincal (borax ore).
Elemental boron and borates are not toxic, but some boron hydrogen compounds are toxic and require careful handling.
Boron conducts electricity poorly at room temperature but effectively at high temperatures. In pyrotechnic flares, it provides a distinctive green color. The pentahydrate form is used to make insulation fiberglass and sodium perborate bleach.
Morceaux de bore, cristallins, 20 mm (0,8 po) & moins, 99,5 % (à base de métaux), Thermo Scientific Chemicals
CAS: 7440-42-8 Formule moléculaire: B Poids moléculaire (g/mol): 10.81 Numéro MDL: MFCD00134034 MFCD00151272 Clé InChI: ZOXJGFHDIHLPTG-UHFFFAOYSA-N Synonyme: boron, metallic,unii-n9e3x5056q,boron, amorphous,powder, crystalline,boro,boron-elemental,boron, elemental,and compounds,boracium,boranylidyne CID PubChem: 5462311 ChEBI: CHEBI:27560 Nom IUPAC: bore SMILES: [B]
Poudre de bore (96 + atomique % B-11), cristalline, mailles de -100, 99,9 % (base de métaux), Thermo Scientific Chemicals
CAS: 7440-42-8 Formule moléculaire: B Poids moléculaire (g/mol): 10.81 Numéro MDL: MFCD00134034 MFCD00151272 Clé InChI: ZOXJGFHDIHLPTG-UHFFFAOYSA-N Synonyme: boron, metallic,unii-n9e3x5056q,boron, amorphous,powder, crystalline,boro,boron-elemental,boron, elemental,and compounds,boracium,boranylidyne CID PubChem: 5462311 ChEBI: CHEBI:27560 Nom IUPAC: bore SMILES: [B]
Poudre de bore (96+ atomique % B-10), cristalline, -60+100 mailles, 99,9 % (à base de métaux), Thermo Scientific Chemicals
CAS: 7440-42-8 Formule moléculaire: B Poids moléculaire (g/mol): 10.81 Numéro MDL: MFCD00134034 MFCD00151272 Clé InChI: ZOXJGFHDIHLPTG-UHFFFAOYSA-N Synonyme: boron, metallic,unii-n9e3x5056q,boron, amorphous,powder, crystalline,boro,boron-elemental,boron, elemental,and compounds,boracium,boranylidyne CID PubChem: 5462311 ChEBI: CHEBI:27560 Nom IUPAC: bore SMILES: [B]
Poudre de bore, cristalline, maille de -4+40, Puratronic™, 99,9999 % (base de métaux), Thermo Scientific Chemicals
CAS: 7440-42-8 Formule moléculaire: B Poids moléculaire (g/mol): 10.81 Numéro MDL: MFCD00134034 MFCD00151272 Clé InChI: ZOXJGFHDIHLPTG-UHFFFAOYSA-N Synonyme: boron, metallic,unii-n9e3x5056q,boron, amorphous,powder, crystalline,boro,boron-elemental,boron, elemental,and compounds,boracium,boranylidyne CID PubChem: 5462311 ChEBI: CHEBI:27560 Nom IUPAC: bore SMILES: [B]