Cannizzaro Reaction of Formaldehyde

2HCHO + NaOH → HCOONa + CH₃OH

अवलोकन

In the Cannizzaro reaction, two molecules of a non-enolizable aldehyde undergo disproportionation in the presence of strong base. One molecule is oxidized to a carboxylate salt while the other is reduced to an alcohol. Formaldehyde disproportionates to sodium formate and methanol.

प्रतिभागी

भूमिका	पदार्थ	गुणांक	अवस्था
अभिकारक	Sodium Hydroxide NaOH	1	(aq)
अभिकारक	Formaldehyde CH₂O	2	(aq)
उत्पाद	Methanol CH₃OH	1	(l)

रोजमर्रा का उदाहरण

The Cannizzaro reaction demonstrates that oxidation and reduction can occur simultaneously between identical molecules (disproportionation).

औद्योगिक महत्व

The crossed Cannizzaro reaction of formaldehyde with other aldehydes produces polyols like pentaerythritol, used in alkyd resins and explosives (PETN).

गुण

प्रकार: Organic
प्रतिवर्ती: नहीं
ऊर्जा: ऊष्माक्षेपी
ΔH: -60.0 kJ/mol

Frequently Asked Questions

What is the equation for Cannizzaro Reaction of Formaldehyde?

The balanced equation is: 2HCHO + NaOH → HCOONa + CH₃OH.

What type of reaction is Cannizzaro Reaction of Formaldehyde?

Cannizzaro Reaction of Formaldehyde is a organic reaction.

Is Cannizzaro Reaction of Formaldehyde exothermic or endothermic?

Cannizzaro Reaction of Formaldehyde is exothermic (releases energy). The enthalpy change (ΔH) is -60.0 kJ/mol.