DE2007658A1 - Haloketone stabilisation with alkaline earth halides - Google Patents

Haloketone stabilisation with alkaline earth halides

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Publication number
DE2007658A1
DE2007658A1 DE19702007658 DE2007658A DE2007658A1 DE 2007658 A1 DE2007658 A1 DE 2007658A1 DE 19702007658 DE19702007658 DE 19702007658 DE 2007658 A DE2007658 A DE 2007658A DE 2007658 A1 DE2007658 A1 DE 2007658A1
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DE
Germany
Prior art keywords
alkaline earth
haloketone
added
alkali
pref
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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DE19702007658
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German (de)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to DE19702007658 priority Critical patent/DE2007658A1/en
Publication of DE2007658A1 publication Critical patent/DE2007658A1/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/86—Use of additives, e.g. for stabilisation
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D7/00—Compositions for gas-attacks

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Haloketones for tear gas use, particularly chloro-or bromacetone, chloro- or bromobutanone, are stabilised against discolouration and resin-formation on storage by adding an alkali- and/or alkaline earth halide, pref. chlorides, such as NaCl for chloroketones and bromides, such as NaBr, for bromoketones, pref. added as solids or aqs. solutions, particularly conc. aqs. solns. Pref. halogen hydride binders such as alkaline earth carbonates (MgCO3, CaCO3 or BaCO3) are also added.

Description

"Halogenketon" Die Erfindung bezieht sich auf Halogenketone. Diese werden als Augenreizstoffe verwendet. "Haloketone" The invention relates to haloketones. These are used as eye irritants.

Die Halogenketone -im ursprünglichen Zustand helle, leicht bewegliche Flüssigkeiten- sind nicht unbegrenzt lagerstabil; sie neigen-zum Dunkelwerden und Verharzen.The halogen ketones - in their original state, light-colored, easily movable Liquids are not indefinitely stable in storage; they tend-to darken and Resinification.

Wahrscheinlich beginnt die Zersetzung der Halogenketone mit einer Abspaltung von Halogenwasserstoff, der dann seinerseits die weitere Veränderung des Halogenketons zu einem hochmolekularen Produkt katalysiert.The halogen ketones probably begin to decompose with one Elimination of hydrogen halide, which in turn makes the further change of the halogen ketone catalyzes to a high molecular weight product.

Es ist bekannt, daß Halogenwasserstoff bindende Stoffe, z.B.It is known that hydrogen halide binding substances, e.g.

die Erdalkalicarbonate (MgCO3, CaCO3, BaCO3) oder destilliertes Wasser, eine gewisse stabiliserende Wirkung ausüben.the alkaline earth carbonates (MgCO3, CaCO3, BaCO3) or distilled water, have a certain stabilizing effect.

Der erfindung liegt die aufgabe zugrunde, die Lagerstabilität der Halogenketone zu erhöhen.The object of the invention is to improve the storage stability of the Increase Haloketones.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß dem Halogenketon ein Alkali- und/oder Srdalkali-Halogenid zugesetzt wird.This object is achieved according to the invention in that the haloketone an alkali and / or alkaline earth metal halide is added.

Diese 3toffe haben die Eigenschaft, daß sie aufgrund des tIassenwirkangsgesetzes die Abspaltung von Halogenwasserstoff inhibieren.These substances have the property that they are based on the law of action inhibit the elimination of hydrogen halide.

Die Erfahrung zeigt, daß auf diesem lege die Haltbarkeit der Halogenketone größer ist als durch Zusatz von den Halogenwasserstoff bindenden stoffen.Experience shows that the shelf life of the halogen ketones is based on this is greater than by adding the hydrogen halide binding substances.

Handelt es sich bei dem Halogenketon um ein Chlorketon, dann sollte diesem erfindungsgemäß ein Alkali- und/oder Erdalkalichlorid, insbesondere Natriumchlorid, zugesetzt werden.If the halogen ketone is a chloroketone, then should this according to the invention an alkali and / or alkaline earth chloride, in particular sodium chloride, can be added.

Ensprechend wird erfindungsgemäß einem Bromketon ein Alkali-und/oder Erdalkalibromid, insbesondere Natriumbromid, zugesetzt.Accordingly, according to the invention, a bromoketone is an alkali and / or Alkaline earth bromide, especially sodium bromide, added.

Die erfindungsgemäßen Stoffe haben gegenüber den bekannten Zusätzen, (Carbonaten) den weiteren Vorteil, daß sie wasserlöslich sind. Es kann also den Halogenketon eine wässrige Lösung zugesetzt erden, was zur Folge hat, daß die Dosierung leichter möglich ist als bei Zusatz eines festen stoffes.The substances according to the invention have compared to the known additives, (Carbonates) have the further advantage that they are water-soluble. So it can do that Haloketone ground an aqueous solution added, which has the consequence that the dosage is easier than with the addition of a solid substance.

Da das Halogenketon spezifisch schwerer ist als Wasser, kann bei der Fertigung das Halogenketon mit der wässrigen Lösung überschichtet werden. Halogenwasserstoffdämpfe können infolgedessen nicht entweichen, was die Verarbeitung des Halogenketons erleichtert.Since the halogen ketone is specifically heavier than water, the Manufacturing the haloketone to be coated with the aqueous solution. Hydrogen halide vapors As a result, they cannot escape, which makes processing the halogen ketone easier.

Besonders gute Stabilisarionswirkungen erzielt man, wenn man dem Halogenketon zusätzlich einen den Halogenwasserstoff bindenden otoff, z.3. ein Erdalkalicarbonat, zusetzt.Particularly good stabilization effects are achieved when using the halogen ketone additionally an otoff binding the hydrogen halide, z.3. an alkaline earth carbonate, clogs.

Beispiel: Als Lagerzeit tis zum beginnenden Eindicken von Chloraceton wurde unter gleichen Lagerbedingungen (in Ampullen eingeschmolzen bei 65°C) gemessen: ohne Zusatz 10 Tage mit dest. Wasser 59 Tage mit BaCO3 76 Tage mit gesättigter NaCL-Lösung 83 TageExample: As a storage time until the chloroacetone begins to thicken was measured under the same storage conditions (melted in ampoules at 65 ° C): without addition 10 days with dist. Water 59 days with BaCO3 76 days with saturated NaCl solution 83 days

Claims (5)

Patentanspr\xche: . Halogenketon, insbesondere Chloraceton, Bromaceton, Chlorutanon und Brombutanon, g e k e n n z e i c h n e t durch einen Zusatz eines Alkali- und/oder Erdalkalihalogenids als Stabilisator. Claim:. Halogen ketone, especially chloroacetone, bromoacetone, Chlorutanone and bromobutanone, not indicated by the addition of a Alkali and / or alkaline earth halide as a stabilizer. 2. Chlorketon nach Anspruch 1, g e k e n n z e i c h n e t durch einen Zusatz eines alkali- und/oder Erdalkalichlorids, insbesondere von idatriumchlorid.2. chloroketone according to claim 1, g e k e n n z e i c h n e t by a Addition of an alkali and / or alkaline earth chloride, especially sodium chloride. 3. Bromketon nach Anspruch 1, g e k e n n z e i c h n e t durch einen Zusatz eines Alkali- undZoder Srdalkalibromids, insbesondere von Jatriumbromid.3. bromo ketone according to claim 1, g e k e n n z e i c h n e t by a Addition of an alkali and Z or alkaline earth bromide, in particular sodium bromide. 4. Halogenketon nach Anspruch 1 bis 3, dadurch g e k e n n -z e i c h n e t , das3 diesem die Stabilisatoren in fester Form oder in wässriger Lösung, insbesondere konzentrierter wassriger Lösung, zugesetzt worden sind.4. Haloketone according to claim 1 to 3, characterized in that g e k e n n -z e i c h n e t that this the stabilizers in solid Form or in aqueous solution, especially concentrated aqueous solution, has been added are. 5. Halogenketon nach Anspruch 1 bis 4, dadurch g e k e n n -z e i c h n e t , daß diesem zusätzlich ein Halogenwasserstoff bindender Stoff, z.B. ein Erdalkalicarbonat, wie MgCO3, CaCO3 oder BaCO3, zugesetzt worden ist.5. Haloketone according to claim 1 to 4, characterized in that g e k e n n -z e i c h n e t that this additionally contains a hydrogen halide binding substance, e.g. a Alkaline earth carbonate, such as MgCO3, CaCO3 or BaCO3, has been added.
DE19702007658 1970-02-13 1970-02-13 Haloketone stabilisation with alkaline earth halides Pending DE2007658A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702007658 DE2007658A1 (en) 1970-02-13 1970-02-13 Haloketone stabilisation with alkaline earth halides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702007658 DE2007658A1 (en) 1970-02-13 1970-02-13 Haloketone stabilisation with alkaline earth halides

Publications (1)

Publication Number Publication Date
DE2007658A1 true DE2007658A1 (en) 1971-08-26

Family

ID=5762734

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702007658 Pending DE2007658A1 (en) 1970-02-13 1970-02-13 Haloketone stabilisation with alkaline earth halides

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DE (1) DE2007658A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002407A1 (en) * 1996-07-17 1998-01-22 Rhodia Limited Stabilization of perfluoroalkyl alkyl ketones
DE4026469C3 (en) * 1990-08-22 1999-04-29 Weyl Gmbh Process for stabilizing 1-chloroacetone

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026469C3 (en) * 1990-08-22 1999-04-29 Weyl Gmbh Process for stabilizing 1-chloroacetone
WO1998002407A1 (en) * 1996-07-17 1998-01-22 Rhodia Limited Stabilization of perfluoroalkyl alkyl ketones
US6531075B1 (en) 1996-07-17 2003-03-11 Rhodia Limited Stabilization of perfluoroalkyl alkyl ketones

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