Azida de sodio

NaN₃

IUPAC: Sodium azide

CAS: 26628-22-8

Descripción general

Sodium azide is a white crystalline salt that decomposes rapidly when heated, producing nitrogen gas. This property makes it the primary propellant in automotive airbags — when a collision is detected, an electric spark ignites sodium azide, inflating the airbag with N₂ in milliseconds.

Composición

Elemento Símbolo Átomos Masa atómica
Nitrógeno N 3 14,0070
Sodio Na 1 22,9900

Composición elemental

Usos

  • Automotive airbag propellant
  • Biocide in hospitals and laboratories
  • Preservative in stock solutions
  • Synthesis intermediate

Datos curiosos

  • A typical driver's airbag contains about 50-80 g of sodium azide

Seguridad

  • ⚠ Highly toxic if ingested
  • ⚠ Produces toxic HN₃ with acids
  • ⚠ Explosive when heated or shocked

Estructura

SMILES

[N-]=[N+]=[N-].[Na+]

Propiedades

Tipo
salt
Estado
solid
Masa molar
65,01 g/mol
Densidad
1,8460 g/cm³
Punto de fusión
275,0 °C
Solubilidad
417 g/L at 17°C

Descriptores moleculares

Masa exacta
64,9990
TPSA
3,0 Ų
Donadores de enlace de hidrógeno
0
Aceptores de enlace de hidrógeno
2
Enlaces rotables
0
Átomos pesados
4
Complejidad
15,0

También conocido como

Sodium azide

Frequently Asked Questions

What is Azida de sodio?
Azida de sodio (NaN₃) is a salt compound with the IUPAC name Sodium azide.
What is the molecular weight of Azida de sodio?
Azida de sodio has a molar mass of 65.01 g/mol.
What state is Azida de sodio at room temperature?
Azida de sodio is a solid at room temperature.
Is Azida de sodio organic or inorganic?
Azida de sodio is classified as an inorganic compound.
What elements make up Azida de sodio?
Azida de sodio (NaN₃) is composed of Nitrógeno (N), Sodio (Na).