| Identification | Back Directory | [Name]
triberyllium nitride | [CAS]
1304-54-7 | [Synonyms]
beryllium nitride
triberyllium nitride | [EINECS(EC#)]
215-132-6 | [Molecular Formula]
Be3N2 | [MDL Number]
MFCD00799849 | [MOL File]
1304-54-7.mol | [Molecular Weight]
55.0499 |
| Chemical Properties | Back Directory | [Appearance]
Hard, refractory, white crystals. Readily attached by strong alkali solutions, liberating ammonia. | [Melting point ]
2200 ±40° | [Boiling point ]
volatile [MER06] | [density ]
2.710 | [solubility ]
reacts with acid solutions, alkaline solutions | [form ]
gray refractory crystals | [color ]
gray refractory crystals, crystalline;
cubic | [Water Solubility ]
decomposes slowly in H2O, quickly in acids and alkalies to evolve NH3 [MER06] | [Crystal Structure]
Cubic | [Uses]
Atomic energy, production of the radioactive carbon isotope1 4C for tracer uses. | [EPA Substance Registry System]
Beryllium nitride (Be3N2) (1304-54-7) |
| Hazard Information | Back Directory | [Chemical Properties]
Hard, refractory, white crystals. Readily attached by strong alkali solutions, liberating ammonia. | [Description]
Beryllium nitride has the molecular formula of Be3N2 and the molecular weight of 55.0652 g/mol. It can be prepared from the elements at high temperature (1100– 1500 °C). Be3N2 decomposes in vacuum into beryllium and nitrogen:
3Be +N2 → Be3N2
It is a white to yellow powder with a density of 2.71 g/cm3. Its melting point is 2208 °C and a boiling point of 2240 °C. Its CAS number is 1304-54-7. It is soluble in water and is readily hydrolyzed forming beryllium hydroxide and ammonia:
Be3N2 + 3H203→Be(OH)2 + 2NH3
It has two polymorphic forms: cubic a-Be3N2 with a defect anti-bixbyite structure (a = 8.1452 ), and hexagonal β-Be3N2.
| [Physical properties]
Gray cubic crystal; hard and refractory; density 2.71 g/cm3; melts at 2,200°C; decomposes in acid or alkali; slowly reacts with water. | [Preparation]
Beryllium nitride may be prepared by heating beryllium metal powder with dry nitrogen in an oxygen-free atmosphere above 700°C.
3Be + N2→Be3N2 | [Hazard]
Chronic inhalation of the powder can cause cancer and adverse reproductive effects. |
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