Classifications

• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
  • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
  • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
  • A62D3/36—Detoxification by using acid or alkaline reagents
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
  • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
  • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0004—Non aqueous liquid compositions comprising insoluble particles
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
  • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
  • A62D2101/02—Chemical warfare substances, e.g. cholinesterase inhibitors

Definitions

• the invention relates to a basic, non-aqueous decontamination liquid as it is used as a detoxifying agent with a universal effect against chemical warfare agents for detoxifying military and civilian technical means and devices, buildings, streets, etc.
• Examples of such basic, non-aqueous decontamination liquids are known from US Pat. No. 3,079,346 or German Patent DD 299 458 A7. Their basicity is due to the alkali alkoxides (alkali alcoholates, alkali alkanolates) contained therein and their anions. These are the mainly reactive components for the implementation of toxic contaminants that can be used militarily and terroristically, such as chemical warfare agents from the group of mustards (such as, for example, sulfur mustard), fluorophosphorus organyien (such as, for example, Soman) or that of thiocholine phosphoroorgananyls (such as, for example) B. VX).
• mustards such as, for example, sulfur mustard
• fluorophosphorus organyien such as, for example, Soman
• thiocholine phosphoroorgananyls such as, for example
• a disadvantage of the known decontamination liquids is on the one hand their harmful effect on plastics, elastomers and paints, which lead to swelling or softening and detachment thereof and also to signs of corrosion on metals and metal alloys.
• the object of the present invention is to propose a decontamination liquid of the type described at the outset which, on the one hand, can be used more economically and, on the other hand, does not or does not do the coated surfaces, surfaces coated with plastics / elastomers, in particular metals, plastics and elastomers, in the required treatment times attacks significantly.
• This object is achieved according to the invention in the basic, non-aqueous decontamination liquid described at the outset by containing 0.5 to 2.6 mol / l of an alkali metal oxide (alkali metal alcoholate, alkali metal alkoxide) and / or an alkali metal alkoxide (alkali metal alcoholate, alkali metal alkanolate) in one formulation ,
• This wording includes:
• the decontamination liquid according to the invention contains a chemical equilibrium system consisting of the aliphatic alcohols and the amino alcohols, their alkali alkoxides and their ions.
• the decontamination liquid according to the invention can be used with conventional, suitable military and civil decontamination devices for the decontamination of military technology, aircraft, ships and rail vehicles, of facilities such as buildings, roads, taxiways, and also of laboratory devices.
• the non-aqueous decontamination liquid according to the invention is more reactive than the previously known decontamination liquids because of its strong basicity. This justifies their better effectiveness and a lower application rate per unit area to be decontaminated. Due to the increased reactivity, the exposure times can be shortened, so that surface damage to surfaces to be decontaminated made of plastics, elastomers, paints, etc. can be avoided. Corrosion phenomena on metals and metal alloys do not occur even after prolonged exposure.
• the decontamination liquid known from US Pat. No. 3,079,346 has a highly hygroscopic effect, so that fog can occur even at low atmospheric humidity. This is reliably avoided with the decontamination liquid according to the invention.
• the decontamination liquid according to the invention can be rinsed off the treated surfaces with water, the water not necessarily having to be applied at high pressure. Because of the smaller amounts that have to be applied per unit area of decontamination liquid, the water consumption during rinsing is also lower.
• the decontamination liquid known from DD 299 458 A7 is weaker basic than the decontamination liquid according to the invention and also contains N-methyl- ⁇ -caprolactam, which is less economical.
• Another advantage of the present invention is that it can be used very variably, that is to say both in large and small appliances, and finally can also be used with primitive agents, also made up in these.
• Preferred decontamination liquids according to the invention contain at least one alkali alkoxide and one alkali amino alkoxide, which can be introduced (Addition) of the corresponding pure alkali metal or an alkali hydroxide. However, they can also be introduced using commercially available alkali metal alcohols.
• decontamination liquids contain propanols and / or butanols as the aliphatic alcohol.
• the amino alcohol component used is preferably 2-amino-1-butanol, N, N-dimethylaminoethanol and / or N-methyl-diisopropanolamine.
• Preferred acid amides in the formulation of the basic, non-aqueous decontamination liquid according to the invention is N-methyl-2-pyrrolidone.
• one or more co-solvents can be added to the decontamination liquid, such as up to 10% by weight of diols and / or up to 20% by weight of a liquid aliphatic or aromatic hydrocarbon.
• the invention relates to a method for decontaminating surfaces, in particular painted, polymer-coated or plastic or elastomer surfaces, the method being characterized by the use of the decontamination liquid according to the invention described above.
• the average contamination density for the warfare agent sulfur mustard (HD) on the alkyd resin-coated metal plates was still 10840 mg / m 2 .
• the plates were sprayed with 0.1 l / m 2 of the decontamination liquid according to the formulation A. After the exposure time of 5 minutes, the plates were washed with warm Treated with water (approx. 80 ° C) and rinsed off the decontamination liquid.
• the treatment was also carried out with 0.1 l / m 2 of formulation A. After the exposure time of 5 minutes and the aftertreatment with water (approx. 80 ° C.), an average residual contamination of 3.6 mg VX / m 2 was found. This corresponds to a decontamination success of 99.96%.
• the treatment was also carried out at 0.1 l / m 2 with formulation A. After the exposure time of 5 minutes and the aftertreatment with water (approx. 80 ° C.), the residual contamination averaged 98.8 mg GD / m 2 . This corresponds to a decontamination success of 97.53%. Examples 4 to 6
• Examples 1 to 3 were carried out here analogously with the decontamination liquid of formulation B.
• the decontamination effect with these 3 chemical warfare agents was essentially the same as with formulation A.
• Examples 1 to 3 were carried out here analogously with the decontamination liquid of formulation C.
• the overall decontamination effect was somewhat lower and averaged 98.3%, with the decontamination success being 99.4% for the sulfur oat and 99.8% for the VX.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Health & Medical Sciences (AREA)
• Business, Economics & Management (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Toxicology (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Emergency Management (AREA)
• Paints Or Removers (AREA)
• Detergent Compositions (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Fire-Extinguishing Compositions (AREA)
• Cleaning By Liquid Or Steam (AREA)

Applications Claiming Priority (3)

Publications (2)

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Family Applications (1)

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• 2001
  • 2001-03-14 DE DE10112720A patent/DE10112720A1/de not_active Withdrawn
• 2002
  • 2002-02-02 JP JP2002571161A patent/JP4313043B2/ja not_active Expired - Fee Related
  • 2002-02-02 KR KR10-2003-7011986A patent/KR20030086304A/ko not_active Application Discontinuation
  • 2002-02-02 AT AT02712886T patent/ATE345851T1/de not_active IP Right Cessation
  • 2002-02-02 DE DE50208780T patent/DE50208780D1/de not_active Expired - Lifetime
  • 2002-02-02 EP EP02712886A patent/EP1368095B1/fr not_active Expired - Lifetime
  • 2002-02-02 WO PCT/EP2002/001095 patent/WO2002072206A1/fr active IP Right Grant
• 2003
  • 2003-09-09 US US10/659,045 patent/US20040096415A1/en not_active Abandoned

Non-Patent Citations (1)

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