Vitamin C as Reducing Agent

C₆H₈O₆ + I₂ → C₆H₆O₆ + 2HI

Genel Bakış

Ascorbic acid (vitamin C) reduces iodine to iodide while being oxidized to dehydroascorbic acid. The enediol group on ascorbic acid is the active reducing center, losing two electrons. This reaction is the basis of the standard method for determining vitamin C content in foods.

Katılımcılar

Rol	Madde	Katsayı	Hal
Reaktan	Ascorbic Acid C₆H₈O₆	1	(aq)
Reaktan	Iodine I	1	(aq)

Günlük Örnek

School science experiments often measure vitamin C in different juices by titrating with iodine solution until the starch indicator turns blue-black.

Endüstriyel Önemi

Vitamin C iodimetric assay is a standard pharmaceutical quality control method. Ascorbic acid's antioxidant action in food is based on its reducing properties.

Özellikler

Tür: Redox
Geri Dönüşümlü: Hayır
Enerji: Ekzotermik
ΔH: -58,0 kJ/mol

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Frequently Asked Questions

What is the equation for Vitamin C as Reducing Agent?

The balanced equation is: C₆H₈O₆ + I₂ → C₆H₆O₆ + 2HI.

What type of reaction is Vitamin C as Reducing Agent?

Vitamin C as Reducing Agent is a redox reaction.

Is Vitamin C as Reducing Agent exothermic or endothermic?

Vitamin C as Reducing Agent is exothermic (releases energy). The enthalpy change (ΔH) is -58.0 kJ/mol.