Bleaching with Sodium Hypochlorite

NaClO + dye → NaCl + oxidized dye

Aperçu

Sodium hypochlorite (bleach) oxidizes colored organic molecules by breaking the conjugated double bond systems (chromophores) that absorb visible light. The hypochlorite ion (ClO⁻) acts as the oxidizing agent, being reduced to chloride (Cl⁻). This destroys the molecule's ability to absorb colored light.

Participants

Rôle	Substance	Coefficient	État
Réactif	Sodium Hypochlorite NaClO	1	(aq)
Produit	Sodium Chloride NaCl	1	(aq)

Exemple du quotidien

Household bleach (3-8% NaClO) removes stains from clothes and disinfects surfaces by oxidizing organic matter including bacteria.

Importance industrielle

Sodium hypochlorite is used in water disinfection worldwide, in pulp and paper bleaching, textile processing, and as a sanitizer in the food industry.

Propriétés

Type: Redox
Réversible: Non
Énergie: Exothermique

Réactions associées

Iron(II) to Iron(III) Oxidation by Oxygen Copper Reduction of Silver Ion Aqua Regia Dissolving Gold Cerium(IV) Reduction by Iron(II) Chlorine Oxidation of Bromide Copper Oxidation by Nitric Acid Hypochlorite Oxidation of Hydrogen Peroxide Hydrogen Peroxide as Oxidizing Agent (Acidic) Zinc Reduction of Silver Ion Displacement of Hydrogen from Acid by Magnesium

Frequently Asked Questions

What is the equation for Bleaching with Sodium Hypochlorite?

The balanced equation is: NaClO + dye → NaCl + oxidized dye.

What type of reaction is Bleaching with Sodium Hypochlorite?

Bleaching with Sodium Hypochlorite is a redox reaction.

Is Bleaching with Sodium Hypochlorite exothermic or endothermic?

Bleaching with Sodium Hypochlorite is exothermic (releases energy).