Hydrogen Peroxide → Sodium percarbonate

HRID 1781219Notes

Reaction equation

[C:1](=[O:4])([O-:3])[O-:2].[Na+:5].[Na+].[OH:7][OH:8]>>[C:1]([O-:4])([O-:3])=[O:2].[C:1]([O-:4])([O-:3])=[O:2].[OH:7][OH:8].[OH:7][OH:8].[OH:7][OH:8].[Na+:5].[Na+:5].[Na+:5].[Na+:5]

Participants

Reactant 2

HCID 784Hydrogen Peroxide

HCID 10340Sodium Carbonate

Product 1

HCID 159762Sodium percarbonate

Procedure

A method for the preparation of stabilized sodium percarbonate comprising forming a sodium percarbonate core by reacting sodium carbonate with hydrogen peroxide in aqueous phase, crystallizing the resulting sodium percarbonate to obtain a wet sodium percarbonate having mother liquor adhering thereto, spraying said wet sodium percarbonate salt with 5 to 100 liters of a solution or suspension containing sodium perborate per 100 kg of said wet salt, the sodium perborate content of which, expressed as NaBO2.H2O2 is from 15 to 450 g/l, displacing the mother liquor adhering to said wet sodium percarbonate salt by said solution or suspension of sodium perborate so as to completely coat said sodium percarbonate with a coating containing sodium perborate of the formula NaBO2.H2O2.nH2O, wherein n is 0, 1, 2 or 3.

Workup

customcrystallizing the resulting sodium percarbonate

Sources & evidence

ORD record: ord-b50217a351b14b8aae4981607e137ab9
Source dataset: uspto-grants-1997_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05632965

Reaction notes

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