Peroxygen compositions
First Claim
1. A storage stable, aqueous acidic equilibrium solution containing a peracid component in solution and having a pH in the range of from 1 to 5, said peracid component comprising at least one ester peracid having the general formula:
- where R represents an alkyl group having from 1 to 4 carbons and x is from 1 to 4, said ester peracid being present in an amount of from 0.1% to 15% by weight of the solution.
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Accused Products
Abstract
Storage stable, aqueous acidic solutions having a pH in the range of from 1 to 5 comprising at least one ester peracid having general formula
where R represents an alkyl group having from 1 to 4 carbons and x equals 1 to 4, are provided. The solutions can be prepared by contacting an aqueous solution of a carboxylic compound having general formula
where x is from 1 to 4 and R represents an alkyl group having from 1 to 4 carbons with an inorganic peroxygen compound, preferably hydrogen peroxide, at a pH of less than 4 until at least some ester peracid is produced, and thereafter adjusting the pH to be in the range of from 1 to 5, if necessary.
19 Citations
26 Claims
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1. A storage stable, aqueous acidic equilibrium solution containing a peracid component in solution and having a pH in the range of from 1 to 5, said peracid component comprising at least one ester peracid having the general formula:
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where R represents an alkyl group having from 1 to 4 carbons and x is from 1 to 4, said ester peracid being present in an amount of from 0.1% to 15% by weight of the solution. - View Dependent Claims (2, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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3. A process for preparing a storage stable, aqueous acidic equilibrium solution comprising at least one ester peracid, which comprises contacting an aqueous solution comprising at least one carboxylic compound having the general formula:
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where x is from 1 to 4 and R represents an alkyl group having from 1 to 4 carbons, with an inorganic peroxygen compound in the presence of an acid catalyst to produce in said solution, at a pH of less than 1, an ester peracid having the general formula;
where R represents an alkyl group having from 1 to 4 cabons and x is from 1 to 4, and, after the ester peracid has reached a desired concentration, adjusting the pH of the solution to be in the range of from 1 to 5. - View Dependent Claims (4, 5, 22, 23, 24, 25, 26)
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19. A process for the storage of a aqueous acidic equilibrium solution containing a peracid component, said peracid component comprising at least one ester peracid having the general formula:
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where R represents an alkyl group having from 1 to 4 carbons and x is from 1 to 4, said ester peracid being present in an amount of from 0.1% to 15% by weight of the solution, said process comprising storing said solution at a pH of from 1 to 5. - View Dependent Claims (20)
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21. A method for disinfecting which comprises:
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providing a storage stable, aqueous acidic equilibrium solution containing a peracid component in solution and having a pH in the range of from 1 to 5, said peracid component comprising at least one ester peracid having the general formula;
where R represents an alkyl group having from 1 to 4 carbons and x is from 1 to 4, said ester peracid being present in an amount of from 0.1% to 15% by weight of the solution; diluting said storage stable solution to produce a dilute aqueous solution containing said ester peracid in said dilute aqueous solution in an amount of from 1 to 10,000 ppm; and
contacting a substrate to be disinfected with said dilute aqueous solution.
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Specification