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 agent

Info

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
Application number
DEK85339D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE577842C publication Critical patent/DE577842C/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N59/00Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/02Sulfur; 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)

PATENTANSPRUCH: Verfahren zur Herstellung von festem, als Pflanzenschutzmittel geeignetem Bariumpolysulfid, dadurch gekennzeichnet, daß man Bariumsulfid mit Schwefel in Gegenwart von als Schwefelüberträger wirkenden Zusätzen von anorganischen Sulfiden, Sulfiten oder Thiosulfaten ungefähr bei Siedetemperatur des Wassers erhitzt, wobei vor der Umsetzung Wasser zwecks Beschleunigung der Reaktion in einer zur Lösung des Bariumsulfids Lmzureichenden Menge zugefügt -wird.PATENT CLAIM: Process for the production of solid, as a pesticide suitable barium polysulphide, characterized in that one barium sulphide with sulfur in the presence of additives of inorganic sulphides acting as sulfur carriers, Sulphites or thiosulphates heated approximately at the boiling point of the water, whereby before the reaction, water to accelerate the reaction in a solution of the barium sulfide L is added in an insufficient amount.
DEK85339D 1922-05-10 1923-03-25 Process for the production of solid barium polysulphide suitable as a crop protection agent Expired DE577842C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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