Deshidratación de etanol
C2H5OH → C2H4 + H2O
Descripción general
Ethanol is dehydrated to ethylene by concentrated sulfuric acid at 170 C or by passing over heated alumina. This elimination reaction removes water from adjacent carbon atoms to form the C=C double bond. At lower temperatures (140 C), diethyl ether forms instead via intermolecular dehydration.
Participantes
Ejemplo cotidiano
Brazil produces bio-ethylene from sugarcane ethanol using this dehydration, making green polyethylene for sustainable packaging.
Importancia industrial
La deshidratación del etanol a etileno es la base de la industria bioplástica de Brasil, produciendo etileno renovable como alternativa al craqueo petroquímico.
Propiedades
- Tipo
- Orgánica
- Reversible
- Sí
- Energía
- Endotérmico
- ΔH
- 44,0 kJ/mol
- Catalizador
- Concentrated H₂SO₄ or Al₂O₃
Reacciones relacionadas
Preguntas frecuentes
What is the equation for Deshidratación de etanol?
The balanced equation is: C₂H₅OH → C₂H₄ + H₂O.
What type of reaction is Deshidratación de etanol?
Deshidratación de etanol is a orgánica reaction. It is reversible under certain conditions.
Is Deshidratación de etanol exothermic or endothermic?
Deshidratación de etanol is endothermic (absorbs energy). The enthalpy change (ΔH) is 44.0 kJ/mol.
What conditions are needed for Deshidratación de etanol?
This reaction requires a catalyst (Concentrated H₂SO₄ or Al₂O₃).