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90780
BORON, ELEMENTAL, CRYSTALLINE, >92% B-10 enriched, 99% pure, -325 mesh, B
CAS[7440-42-8]
FLAMMABLE
UN3178
DryPowder; OtherSolid
Synonyms
Boron
7440-42-8
Boron, metallic
UNII-N9E3X5056Q
HSDB 4482
EINECS 231-151-2
N9E3X5056Q
MFCD00134034
7440-42-8
Boron, metallic
UNII-N9E3X5056Q
HSDB 4482
EINECS 231-151-2
N9E3X5056Q
MFCD00134034
Molecular Weight
10.81
Solubility
Insoluble in water; unaffected by aqueous hydrochloric and hydrofluoric acids; when finely divided it is soluble in boiling nitric and sulfuric acids and in molten metals such as copper, iron, magnesium, aluminum, calcium; reacts vigorously with fused sodium peroxide or with a fusion mixture of sodium carbonate or potassium nitrate
Boiling Point
4,000 °C
Melting Point
2,075 °C
Density
Amorphous, 2.350 g/cu cm; alpha-rhombohedral, 2.46 g/cu cm; alpha-tetragonal, 2.31 g/cu cm; beta-rhombohedral, 2.35 g/cu cm