DE577842C - Process for the production of solid barium polysulphide suitable as a crop protection agent - Google Patents
Process for the production of solid barium polysulphide suitable as a crop protection agentInfo
- Publication number
- DE577842C DE577842C DEK85339D DEK0085339D DE577842C DE 577842 C DE577842 C DE 577842C DE K85339 D DEK85339 D DE K85339D DE K0085339 D DEK0085339 D DE K0085339D DE 577842 C DE577842 C DE 577842C
- Authority
- DE
- Germany
- Prior art keywords
- production
- crop protection
- water
- protection agent
- solid
- 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
- A01N59/02—Sulfur; Selenium; Tellurium; Compounds thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
Verfahren zur Herstellun' von festem, als Pflanzenschutzmittel creeignetem Bariumpolysulfid Gegenstand der Erfindung ist ein Verfahren zur Herstellung eines aus anorganischen, löslichen Polysulfidverbindungen bestehenden Pflanzenschutzmittels, welches im -Wesen darin besteht, daß man Oxyde, Hydroxyde oder Sulfide der Metalle der Erdalkaven o. dgl. mit Schwefel und mit als Katalysatoren wirkenden Zusätzen von anorganischen oder organischen Sulfiden, Sulfiten, Thiosulfaten oder anderen Schwefelverbindungen ungefähr bei Siedetemperatur des Wassers erhitzt.Process for the production of solid, suitable as a pesticide Barium polysulfide The invention relates to a method for producing a pesticides consisting of inorganic, soluble polysulphide compounds, which in essence consists in the fact that one oxides, hydroxides or sulfides of the metals the alkaline earths or the like with sulfur and with additives acting as catalysts of inorganic or organic sulfides, sulfites, thiosulfates or others Sulfur compounds heated to about the boiling point of water.
Verfahren zur Herstellung von festen, hauptsächlich aus Polysulfiden der Alkali- und Erdalkalimetalle bestehenden Pflanzenschutzmitteln sind bekannt. Diese bekannten Verfahren zur Herstellung der Polysulfide bestehen im Wesen darin, daß die entsprechenden Basen mit Schwefel in Gegenwart von Wasser gekocht werden.Process for the production of solid, mainly from polysulphides the pesticides consisting of alkali and alkaline earth metals are known. These known processes for the production of polysulphides essentially consist in that the corresponding bases are boiled with sulfur in the presence of water.
Es sind auch Verfahren zur Herstellung von wasserunlöslichen bzw. schwer löslichen Pflanzenschutzmitteln aus wasserlöslichen anorganischen Salzen, wie Arsen-, Kupfer-. Bleiu. dgl. Salzen bekannt, bei welchen diese Salze mit Schwefel bei hohen Temperaturen durch längere Zeit zusammengeschmolzen werden.There are also processes for the production of water-insoluble or poorly soluble pesticides made from water-soluble inorganic salts, like arsenic, copper. Lead u. Like. Salts known in which these salts with sulfur melted together for a long time at high temperatures.
Das Verfahren gemäß der Erfindung beruht dagegen auf der Feststellung, daß man zu. festen, löslichen Metallpolysulfiden bei verhältnismäßig sehr niederen Temperaturen und bei kurzer Reaktionsdauer gelangt, wenn man geeignete Katalysatoren zur Umsetzung verwendet. Solche Katalysatoren sind z. B. Sulfide (Alkalisulfide), Sulfite, Thiosulfate oder andere anorganische oder organische Schwefelverbindungen, gegebenenfalls unter Beifügung von Lösungsmitteln, -wie Wasser, Schwefelkohlenstoff usw., in geringer Menge.The method according to the invention, on the other hand, is based on the finding that one too. solid, soluble metal polysulphides at relatively very low Temperatures and with a short reaction time, if you use suitable catalysts used for implementation. Such catalysts are e.g. B. Sulphides (alkali sulphides), Sulphites, thiosulphates or other inorganic or organic sulfur compounds, optionally with the addition of solvents, such as water or carbon disulfide etc., in small amount.
Als Pflanzenschutzmittel kommen insbesondere feste Polysulfidverbindungen der Erdalkalimetalle in Betracht, welche, allein oder untereinander vermischt, Verwendung finden können.. Beispiel llan vermischt 15 Teile Bariumsulfid mit io Teilen Schwefel, fügt etwa i Teil Wasser und o,5 Teil Natriumsulfid hinzu, steigert unter Rühren die Temperatur auf etwa So bis ioo°, hält bei dieser Temperatur etwa ro Minuten und läßt hierauf erkalten.Solid polysulphide compounds are particularly useful as crop protection agents the alkaline earth metals which, alone or mixed with one another, use can find .. Example llan mixed 15 parts of barium sulfide with 10 parts of sulfur, add about 1 part water and 0.5 part sodium sulfide, increase with stirring the temperature to about 50 to 100 degrees, holds at this temperature for about 50 minutes and then lets it cool down.
Zur Herstellung einer Brühe wird das Pulver in entsprechenden Mengen Wasser gelöst.The powder is used in appropriate quantities to make a broth Dissolved in water.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT577842X | 1922-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE577842C true DE577842C (en) | 1933-06-06 |
Family
ID=3676879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK85339D Expired DE577842C (en) | 1922-05-10 | 1923-03-25 | Process for the production of solid barium polysulphide suitable as a crop protection agent |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE577842C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1059708B (en) * | 1956-09-06 | 1959-06-18 | Bergwerksverband Gmbh | Process for the production of sulphurous lime broth for pest control |
DE1156390B (en) * | 1960-08-11 | 1963-10-31 | Bergwerksverband Gmbh | Process for drying lime sulfur broth that can be used in crop protection |
-
1923
- 1923-03-25 DE DEK85339D patent/DE577842C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1059708B (en) * | 1956-09-06 | 1959-06-18 | Bergwerksverband Gmbh | Process for the production of sulphurous lime broth for pest control |
DE1156390B (en) * | 1960-08-11 | 1963-10-31 | Bergwerksverband Gmbh | Process for drying lime sulfur broth that can be used in crop protection |
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