DE806610C - Process for the odor and taste elimination of technical hexachlorocyclohexane - Google Patents
Process for the odor and taste elimination of technical hexachlorocyclohexaneInfo
- Publication number
- DE806610C DE806610C DEP1719A DEP0001719A DE806610C DE 806610 C DE806610 C DE 806610C DE P1719 A DEP1719 A DE P1719A DE P0001719 A DEP0001719 A DE P0001719A DE 806610 C DE806610 C DE 806610C
- Authority
- DE
- Germany
- Prior art keywords
- hexachlorocyclohexane
- technical
- odor
- taste
- elimination
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Geruch- und Geschmacklosmachung von technischem Hexachlorcyclohexan Das technische Hexachlorcyclohexan besitzt einen charakteristischen Geruch und Geschmack, die seiner Verwendung als insekticides Mittel Grenzen setzen. Es sind bereits mehrere Vorschläge zur Erreichung einer Geruchs- und Geschmacksverbesserung von Hexachlorcyclohexan gemacht worden, darunter auch der, dieses Produkt einer Reduktion mit Wasserstoff zu unterwerfen. Dabei zeigt sich aber eigenartigerweise, daß das so behandelte Produkt in seiner insekticiden Wirkung einen beachtlichen Abfall erleidet. Außerdem zeigt es sich bei diesem Verfahren, daß sich seiner technischen Auswertung erhebliche Schwierigkeiten dadurch entgegenstellen, daß die Verwendung immer frischer I2eaktionsgetnische zur Erzeugung des Wasserstoffes notwendig ist.Process for eliminating the odor and taste of technical hexachlorocyclohexane The technical hexachlorocyclohexane has a characteristic smell and taste, which limit its use as an insecticidal agent. There are already several Proposals for achieving a smell and taste improvement of hexachlorocyclohexane made, including the, this product of a reduction with hydrogen to subjugate. Strangely enough, this shows that the product treated in this way suffers a considerable decrease in its insecticidal effect. Also shows it is with this process that its technical evaluation is considerable Oppose difficulties by using always fresh reaction dishes is necessary to generate the hydrogen.
Gemäß der vorliegenden Erfindung zeigt es sich nun überraschenderweise, daß der Erfolg ohne Schädigung der insekticiden Wirkung des Hexachlorcyclohexan erreicht wird, wenn das Hexachlorcyclohexan in einem organischen Lösungsmittel der Einwirkung der Elektrolyse unterworfen wird, wobei es nicht notwendig ist, daß gasförmiger Wasserstoff zur Ausscheidung kommt. Gegebenenfalls muß die Lösung durch Elektrolytzusatz leitfähig gemacht werden. Als Kathode kann Blei oder Kohle verwendet werden. Als Anode dient Kohle. Es hat sich gezeigt, daß r'/2 Amperestunden für etwa 5 g Hexachlorcyclohexan genügen. Als Lösungsmittel für das Hexachlorcyclohexan können beispielsweise genannt werden: Methylalkohol, Äthylalkohol, Aceton, Dioxan, Isopropylalkohol, Glykol, Glycerin.According to the present invention, it is now surprisingly found that success without damaging the insecticidal effect of hexachlorocyclohexane is achieved when the hexachlorocyclohexane is in an organic solvent Is subjected to the action of electrolysis, it is not necessary that gaseous Hydrogen comes to the excretion. If necessary, the solution must be supplemented by electrolyte be made conductive. Lead or carbon can be used as the cathode. as The anode is used for coal. It has been shown that r '/ 2 ampere-hours for approximately 5 g of hexachlorocyclohexane are sufficient. Can be used as a solvent for the hexachlorocyclohexane Examples include: methyl alcohol, ethyl alcohol, acetone, dioxane, isopropyl alcohol, Glycol, glycerin.
Beispiele i. io g Hexachlorcyclohexan werden in 8oo ccm Aceton gelöst. Mit Hilfe zweier in die Lösung tauchenden Elektroden wird die Elektrolyse mit einer Stromstärke von i Ampere 3 Stunden lang durchgeführt. Zu der Mischung werden 200o ccm Wasser gegeben, das abgeschiedene Hexachlorcyclohexan abfiltriert und im Vakuum getrocknet. Das so erhaltene Produkt ist völlig frei von Geruch und Geschmack.Examples i. 10 g of hexachlorocyclohexane are dissolved in 8oo cc of acetone. With the help of two electrodes immersed in the solution, the electrolysis is carried out with a Amperage of i ampere carried out for 3 hours. Add 200o to the mixture ccm of water given, the separated hexachlorocyclohexane filtered off and in vacuo dried. The product obtained in this way is completely free of odor and taste.
z. io g technisches Hexachlorcyclohexan werden in Zoo ccm heißem Methylalkohol gelöst, oder io g technisches Hexachlorcyclohexan werden in i5occm heißem Butylalkohol gelöst. Die so erhaltene Lösung wird wie in Beispiel i behandelt; das Ergebnis ist das gleiche.z. 10 g of technical hexachlorocyclohexane are stored in zoo cc of hot methyl alcohol dissolved, or 10 g of technical hexachlorocyclohexane are dissolved in 15 ounces of hot butyl alcohol solved. The solution thus obtained is treated as in Example i; The result is the same.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP1719A DE806610C (en) | 1948-10-02 | 1948-10-02 | Process for the odor and taste elimination of technical hexachlorocyclohexane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP1719A DE806610C (en) | 1948-10-02 | 1948-10-02 | Process for the odor and taste elimination of technical hexachlorocyclohexane |
Publications (1)
Publication Number | Publication Date |
---|---|
DE806610C true DE806610C (en) | 1951-06-14 |
Family
ID=7357431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP1719A Expired DE806610C (en) | 1948-10-02 | 1948-10-02 | Process for the odor and taste elimination of technical hexachlorocyclohexane |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE806610C (en) |
-
1948
- 1948-10-02 DE DEP1719A patent/DE806610C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1068259B (en) | ||
DE1147457B (en) | Wetting agent for galvanic baths | |
DE806610C (en) | Process for the odor and taste elimination of technical hexachlorocyclohexane | |
DE1211892B (en) | Non-aqueous phosphating bath | |
DE1770579A1 (en) | Process for the production of rifamycin | |
DE1283841B (en) | Basically substituted ethers of ethanolamine | |
DE1471764B2 (en) | ||
DE749156C (en) | Process to improve the electrical properties of humus or lignin-containing stiffeners for dry batteries | |
DE457996C (en) | Method of making an insecticide | |
DE607974C (en) | Process for the production of cellulose solutions of a certain viscosity | |
DE971836C (en) | Process for the preparation of p-aminobenzoic acid esters which are effective as infiltration anesthetics | |
DE695408C (en) | Process for the transfer of the alkali salts of barbituric acids into durable aqueous solutions | |
DE1215848B (en) | Fragrance | |
DE459602C (en) | Process for the preparation of glycolic acid and its derivatives | |
DE752114C (en) | Process for the electrolytic rhodium plating of lignosulfonic acid | |
DE1155436B (en) | Process for the preparation of 1- [p- (ª ‰ -Diaethylaminoaethoxy) -phenyl] -1, 2-diphenyl-2-chloroethylene | |
DE434264C (en) | Method for the preparation of a therapeutically effective preparation from digitalis sheets | |
DE965582C (en) | Process for the preparation of 1-p-nitrophenyl-2-dichloroacetamido-propane-1, 3-diol | |
DE568547C (en) | Process for the production of acetaldehyde | |
DE844300C (en) | Process for the preparation of 5-nitro-uracil-carboxylic acid (4) or derivatives thereof substituted on the nitrogen atom | |
AT89905B (en) | Method for purifying glycerin. | |
DE2409172A1 (en) | Lead accumulator positive plates contg. hydrophilic polymers - and higher water content, giving increased capacity and performance | |
DE675360C (en) | Production of arsenates by anodic oxidation of salts of arsenic acid | |
SU100967A2 (en) | Method for producing crystalline iodine from iodine-saturated coals | |
DE628558C (en) | Process for the production of ketones of the anthracene series |