DE964092C - Process for the production of long-lasting solutions of rhodanic acid and / or of acidic solutions of rhodanides which are suitable for disinfection purposes - Google Patents
Process for the production of long-lasting solutions of rhodanic acid and / or of acidic solutions of rhodanides which are suitable for disinfection purposesInfo
- Publication number
- DE964092C DE964092C DEW15548A DEW0015548A DE964092C DE 964092 C DE964092 C DE 964092C DE W15548 A DEW15548 A DE W15548A DE W0015548 A DEW0015548 A DE W0015548A DE 964092 C DE964092 C DE 964092C
- Authority
- DE
- Germany
- Prior art keywords
- solutions
- rhodanides
- production
- long
- lasting
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/24—Cyanogen or compounds thereof, e.g. hydrogen cyanide, cyanic acid, cyanamide, thiocyanic acid
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Plant Pathology (AREA)
- Chemical & Material Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
AUSGEGEBEN AM 16. MAI 1957ISSUED MAY 16, 1957
W15548 IVa 130 iW15548 IVa 130 i
Die desinfizierende Wirkung von Lösungen der Rhodanwasserstoffsäure bzw. der angesäuerten Rhodanidlösungen ist bekannt. Ebenso weiß man, daß Lösungen von Rhodanwasserstoffsäure bzw. angesäuerte Rhodanidlösungen schon in geringer Konzentration, beispielsweise von 5 °/o, sich bei gewöhnlicher Zimmertemperatur polymerisieren bzw. zersetzen.The disinfecting effect of solutions of the rhodanic acid or acidified Rhodanide solutions are known. It is also known that solutions of hydrofluoric acid or Acidified rhodanide solutions even in low concentrations, for example 5%, can be found in ordinary Polymerize or decompose at room temperature.
Die Polymerisationsprodukte scheiden sich in feinverteilter Form allmählich ab. Es hat sich überraschenderweise gezeigt, daß diese Polymerisation durch den Zusatz von Propylalkohol oder auch Isopropylalkohol verhindert werden kann, so daß auch höher konzentrierte Lösungen von Rhodanwasserstoffsäure, die auch aus Rhodaniden durch Säurezusatz in Freiheit gesetzt sein kann, haltbar gemacht werden können. Diese Haltbarkeit ermöglicht die Verwendung derartiger Lösungen für Desinfektionszwecke beispielsweise nach Verdünnung mit Wasser zur Raumdesinfektion durch Versprühen der verdünnten Lösungen. Ebenso können derartige Konzentrate in jeder gewünschtenThe polymerization products gradually separate out in finely divided form. It has Surprisingly shown that this polymerization by the addition of propyl alcohol or Isopropyl alcohol can also be prevented, so that even more concentrated solutions of hydrofluoric acid, which can also be set free from rhodanides by adding acid, can be made durable. This durability enables such solutions to be used for disinfection purposes, for example after dilution with water for room disinfection by spraying the diluted solutions. as well such concentrates can be made in any desired
709-514/79709-514 / 79
Verdünnung zu destilliertem oder Leitungswasser zugegeben werden, das durch Einfrieren keimfreies Kristalleis ergibt. Die Wirkungskomponemten sind in derartigem Eis gleichmäßig verteilt und frieren nicht aus.Dilution can be added to distilled or tap water, which is aseptic by freezing Crystal ice results. The active components are evenly distributed in such ice and freeze not from.
Beispiel ιExample ι
129 g Bariumrhodanid werden in 800 ml i2,5°/oigem Isopropylalkohol gelöst und dann mit 200 ml 25%iger Schwefelsäure unter Umrühren versetzt. Vom ausfallenden Bariumsulfat wird ab^ filtriert, und das Filtrat ergibt eine etwa 6%ige RhodanwasserstofFsäurelösung, die für Desinfektionszwecke unverdünnt oder mit Wasser und/oder wasserlöslichen Lösungsmitteln verdünnt Verwendung finden kann.129 g of barium rhodanide are dissolved in 800 ml of i2.5% isopropyl alcohol and then with 200 ml of 25% sulfuric acid are added while stirring. From the precipitating barium sulfate is from ^ filtered, and the filtrate gives an approximately 6% strength rhodanic acid solution, which is suitable for disinfection purposes Use undiluted or diluted with water and / or water-soluble solvents Can be found.
76 g Ammonrhodanid werden in 400 ml Wasser gelöst und der Lösung dann 136 g Kaliumhydrogensulfat, gelöst in 400 ml Wasser, zugefügt. Anschließend wird mit Propylalkohol auf 1000 ml aufgefüllt. 76 g of ammonium thiocyanate are dissolved in 400 ml of water and then 136 g of potassium hydrogen sulfate are added to the solution, dissolved in 400 ml of water, added. It is then made up to 1000 ml with propyl alcohol.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW15548A DE964092C (en) | 1954-12-15 | 1954-12-15 | Process for the production of long-lasting solutions of rhodanic acid and / or of acidic solutions of rhodanides which are suitable for disinfection purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW15548A DE964092C (en) | 1954-12-15 | 1954-12-15 | Process for the production of long-lasting solutions of rhodanic acid and / or of acidic solutions of rhodanides which are suitable for disinfection purposes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE964092C true DE964092C (en) | 1957-05-16 |
Family
ID=7595538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW15548A Expired DE964092C (en) | 1954-12-15 | 1954-12-15 | Process for the production of long-lasting solutions of rhodanic acid and / or of acidic solutions of rhodanides which are suitable for disinfection purposes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE964092C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1095994B (en) * | 1957-01-22 | 1960-12-29 | Bio Chemie Kade G M B H | Disinfectants |
-
1954
- 1954-12-15 DE DEW15548A patent/DE964092C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1095994B (en) * | 1957-01-22 | 1960-12-29 | Bio Chemie Kade G M B H | Disinfectants |
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