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Chemical and biological warfare decontaminating solution using peracids and germinants in microemulsions, process and product thereof

a technology of peracids and germinants, applied in detergent compounding agents, other chemical processes, fire extinguishers, etc., can solve the problems of time delay, certain undesirable properties, and the inability to fully realize the effects of biological agents,

Inactive Publication Date: 2005-03-17
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemical agents (CA) and biological agents (BA), (collectively CB agents) are becoming an increasingly problematic to military commander and civil authorities.
Unlike chemical agents, a time delay may occur before the full extent of the effects of the biological agents become apparent.
However, these known methods use compositions which have certain undesirable properties, including corrosiveness, flammability and toxicity.
For example, hypochlorite formulations are very corrosive and toxic.
Additionally, application of the hypochlorite decontaminant often requires substantial scrubbing for removal and destruction of the chemical warfare agent, a procedure which limits its use.
Further, DS2 may cause corrosion to aluminum, cadmium, tin and zinc after prolonged contact, and softens and removes paint.
Similar corrosion and human toxicity problems exist with the bleach decontamination solution (HTH) used by the United States Navy.
Liquid hydrogen peroxide presents handling, storage, and shipping problems.
Strong oxidizers may be used to detoxify warfare agent, however, several problems exist with the use of the strong oxidizers.
The reactivity of most strong oxidizers inhibit long shelf life of any decontaminating solution, tend to be corrosive, and are hazardous to humans and the environment.
Also, most of the strong oxidizers are liquids, making shipping and storage a problem.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] 3,023 mg of an alkane sulfonate surfactant blend of approximately 52% of Clariant's Hostapur SAS-30 (secondary alkane sulfonate, sodium salt) and 48% of Dow Chemical's Dowfax Hydrotrope (benzene 1,1′-oxybis-,sec-hexyl derivative, sulfonated sodium salts) was weighed into a reaction vessel. 1,483 μL of 3.0 M KOH solution was added and mixed. Chemical agent sufficient to achieve a concentration of 0.1 M was added and mixed. 660 μL of 15% peracetic acid solution was added and mixed. A 15-minute decontamination period was allowed followed by neutralization and determination of the amount remaining chemical agent.

[0027] The peracetic acid used in Example 1 was a commercial solution of 15% peracetic acid. The disadvantage of the peracetic acid solution is stability evidenced by foaming and offgassing in the mixed system. As the commercial grades of PAA are mixtures of acetic acid, hydrogen peroxide, peracetic acid, stabilizing agents, and water, the foaming and offgassing is cause...

example 2

[0029] 342 mg of a mixed amine oxide surfactant blend of approximately 14% of Albemarle's Damox 1010 and 86% of Lonza's Barlox 10S, 646 mg of deionized water, 75 mg of sodium Carbonate, and 10 mg of dipicolinic acid were weighed into a vial and mixed until homogeneous. 125 mg of peracetyl borate was added to a second vial. The contents of the two vials were combined and mixed until the solid peracetyl borate is fully dissolved. The solution was transferred to a 5 mm Nuclear Magnetic Resonance (NMR) tube. Chemical agent sufficient to achieve a concentration of 0.1 M was added to the NMR tube. The reaction progress was monitored by NMR spectroscopy.

[0030] The stability problems found in Example 1 were resolved by the use of a solid form of peracetic acid called peracetyl borate. Upon dissolution in water, peracetyl borate generates peracetic acid with minimal generation of hydrogen peroxide. Decontamination systems incorporating the peracetyl borate retain the advantage of having a s...

example 3

[0032] The effectiveness of various combinations of microemulsion, peracid and germinant were tested.

[0033] For formulation A, 135 mg of didecyl methylamine oxide was brought to a volume of 4 mL with deionized water. For formulation B, 1178 mg of dimethyl decylamine oxide was brought to a volume of 4 mL with deionized water. For formulation C, 1368 mg of a mixed amine oxide surfactant blend of approximately 14% of Albemarle's Damox 1010 and 86% of Lonza's Barlox 10S, 2584 mg of deionized water, and 300 mg of sodium carbonate were weighed into a vial and mixed until homogeneous. 500 mg of peracetyl borate was added to a second vial. The contents of the two vials were combined and mixed until the solid peracetyl borate was fully dissolved. For formulation D, 40 mg of dipicolinic acid was brought to a volume of 4 mL with deionized water. For formulation E, 528 μL of 15% commercial peracetic acid solution was brought to a volume of 4 mL with deionized water.

[0034] 10 μL of a suspensio...

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Abstract

A microemulsion composition having a solid source of peroxycarboxylic acid and germinant is used for chemical and biological warfare decontamination. A process for decontaminating uses the microemulsion composition.

Description

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0001] The invention described herein may be manufactured and used by or for the government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention provides a chemical warfare agent decontamination (decon) solution. More particularly, the decontamination solution includes a microemulsion composition having a solid source of peroxycarboxylic acid dissolved in the microemulsion and a germinant in combination with the solid peroxycarboxylic acid. The decontaminating solution is useful in neutralizing chemical and biological warfare agents. [0004] 2. Brief Description of the Related Art [0005] Chemical agents (CA) and biological agents (BA), (collectively CB agents) are becoming an increasingly problematic to military commander and civil authorities. Use of these agents is know...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A62D3/38A62D101/02C11D1/75C11D3/00C11D3/39C11D17/00
CPCA62D3/38A62D2101/02C11D17/0021C11D3/3947C11D1/75
Inventor BROWN, JERRY S.HODGE, RICHARD C.MCCABE, MARGARET A.MCGRADY, KAREN A.SCHILLING, AMANDA S.
Owner THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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