Triberylliumnitrid

triberyllium nitride Struktur
1304-54-7
CAS-Nr.
1304-54-7
Bezeichnung:
Triberylliumnitrid
Englisch Name:
triberyllium nitride
Synonyma:
beryllium nitride;triberyllium nitride
CBNumber:
CB2889694
Summenformel:
Be3N2
Molgewicht:
55.049946
MOL-Datei:
1304-54-7.mol

Triberylliumnitrid Eigenschaften

Schmelzpunkt:
2200 ±40°
Siedepunkt:
volatile [MER06]
Dichte
2.710
Löslichkeit
reacts with acid solutions, alkaline solutions
Aggregatzustand
gray refractory crystals
Farbe
gray refractory crystals, crystalline; cubic
Wasserlöslichkeit
decomposes slowly in H2O, quickly in acids and alkalies to evolve NH3 [MER06]
Crystal Structure
Cubic
EPA chemische Informationen
Beryllium nitride (Be3N2) (1304-54-7)

Sicherheit

RIDADR  1566
HazardClass  6.1(b)
PackingGroup  III

Triberylliumnitrid Chemische Eigenschaften,Einsatz,Produktion Methoden

Beschreibung

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 + 3H203Be(OH)2 + 2NH3
It has two polymorphic forms: cubic a-Be3N2 with a defect anti-bixbyite structure (a = 8.1452 ), and hexagonal β-Be3N2.

Chemische Eigenschaften

triberyllium nitride is hard, refractory, white crystals. Readily attached by strong alkali solutions, liberating ammonia.

Physikalische Eigenschaften

Hard white or grayish crystal. Oxidizes in air above 600°C. Slowly decomposes in water, quickly in acids and alkalis with evolution of NH3.

Physikalische Eigenschaften

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.

Verwenden

triberyllium nitride productions of the radioactive carbon isotope1 4C for tracer uses.

synthetische

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.

Triberylliumnitrid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Triberylliumnitrid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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