Amoniaco y ácido clorhídrico (humo blanco)

NH3 + HCl → NH4Cl

Descripción general

Ammonia gas reacts with hydrogen chloride gas to form white fumes of ammonium chloride solid. This dramatic reaction occurs when concentrated ammonia and hydrochloric acid bottles are placed near each other, as the vapors meet in air and create a white smoke cloud.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Amoniaco NH₃ 1 (g)
Reactivo Ácido clorhídrico HCl 1 (g)

Ejemplo cotidiano

The white smoke that forms when bottles of ammonia and HCl are opened near each other is one of the most striking gas-phase chemistry demonstrations.

Importancia industrial

El cloruro de amonio se utiliza en fundentes de soldadura, en pilas de zinc-carbono, como fertilizante nitrogenado y en formulaciones de medicamentos para la tos.

Preguntas frecuentes

What is the equation for Amoniaco y ácido clorhídrico (humo blanco)?
The balanced equation is: NH₃ + HCl → NH₄Cl.
What type of reaction is Amoniaco y ácido clorhídrico (humo blanco)?
Amoniaco y ácido clorhídrico (humo blanco) is a doble desplazamiento reaction. It is reversible under certain conditions.
Is Amoniaco y ácido clorhídrico (humo blanco) exothermic or endothermic?
Amoniaco y ácido clorhídrico (humo blanco) is exothermic (releases energy). The enthalpy change (ΔH) is -176.0 kJ/mol.