Hydrogen Peroxide → Sodium percarbonate

HRID 2163695Notes

Reaction equation

[C:1](=[O:4])([O-:3])[O-:2].[Na+:5].[Na+].[OH-:7].[Na+].[OH:9]O>>[C:1]([O-:4])([O-:3])=[O:2].[C:1]([O-:4])([O-:3])=[O:2].[OH:7][OH:9].[OH:7][OH:9].[OH:7][OH:9].[Na+:5].[Na+:5].[Na+:5].[Na+:5]

Participants

Reactant 3

HCID 784Hydrogen Peroxide

HCID 10340Sodium Carbonate

HCID 14798Sodium Hydroxide

Product 1

HCID 159762Sodium percarbonate

Procedure

We have found that one convenient way of obtaining a pH in the range of 10.5 to 11.5 is to use sodium carbonate or sodium hydroxide. According to a modification of the process the hydrogen peroxide is provided in situ by dissolution of sodium percarbonate, (food and drug grade). By sodium percarbonate we mean the addition product of hydrogen peroxide and sodium carbonate having the stoichiometric composition Na2CO3.3/2H2O2. Generally speaking bleaching using an equivalent amount of sodium percarbonate has the advantage that addition of carbonate to regulate the pH occurs simultaneously with addition of hydrogen peroxide and in consequence simplifies the process.

Sources & evidence

ORD record: ord-8f56eccde1b14ec7ac296c17c787c51a
Source dataset: uspto-grants-1979_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04136204

Reaction notes

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