Fumigation methods and compositions
    1.
    发明公开
    Fumigation methods and compositions 失效
    Verfahren und Zusammensetzungen zurRäucherung。

    公开(公告)号:EP0337503A2

    公开(公告)日:1989-10-18

    申请号:EP89110702.1

    申请日:1984-04-30

    CPC classification number: A01N25/18 A01N59/02 A01N59/04 A01N59/06

    Abstract: The invention is directed to compositions for the fumigation of soils, enclosed spaces, agricultural products and other commodities, etc., using compositions which decompose to form carbon disulfide and certain other biocidal materials. Such fumigation can be used to control bacteria, fungi, insects, nematodes, rodents, and weeds.
    A composition is provided which is an aqueous solution of ammonium, alkali metal or alkaline earth metal thiocarbonate or a mixture thereof, comprising an added base, the concentration of the added base being sufficient to produce a pH above 7 in the solution: These "thiocarbonates," include, without limitation, salts of trithiocarbonic acid and tetrathiocarbonic acid, compositions having empirical formulae intermediate to these acid salts (such as MCS 3.7 , wherein M is a divalent metal ion), and compositions containing substances in addition to thiocarbonates [such as a stabilized ammonium tetrathiocarbonate which contains ammonium sulfide, i.e. (NH 4 )- 2 CDS 4 (NH 4 ) 2 S].
    The compositions are generally water soluble and can be prepared, stored, and used in aqueous solutions. The thiocarbonate solutions of the invention are stable during prolonged periods of storage in a closed container, exhibit a low vapor pressure, and are not flammable. For soil fumigation, thiocarbonates can be mixed with fertilizers to provide a multi-functional application.

    Abstract translation: 本发明涉及使用分解形成二硫化碳和某些其它杀生物材料的组合物来熏蒸土壤,封闭空间,农产品和其他商品等的组合物。 这种熏蒸可用于控制细菌,真菌,昆虫,线虫,啮齿动物和杂草。 提供了一种组合物,其是铵,碱金属或碱土金属硫代碳酸盐或其混合物的水溶液,其包含加入的碱,添加的碱的浓度足以在溶液中产生高于7的pH。 这些“硫代碳酸酯”包括但不限于三硫代碳酸和四硫代碳酸的盐,具有中间到这些酸盐的经验式的组合物(例如MCS3.7,其中M是二价金属离子),以及含有除了 硫代碳酸盐[如稳定的含硫化铵的四硫代碳酸铵,即(NH4)2CDS4(NH4)2S]。 组合物通常是水溶性的,可以制备,储存并用于水溶液中。 本发明的硫代碳酸盐溶液在密闭容器中长时间储存​​期间是稳定的,呈现低蒸气压,并且不易燃。 对于土壤熏蒸,硫代碳酸盐可与肥料混合以提供多功能应用。

    Fumigation methods and compositions
    2.
    发明公开
    Fumigation methods and compositions 失效
    补充方法和组成

    公开(公告)号:EP0337503A3

    公开(公告)日:1990-05-02

    申请号:EP89110702.1

    申请日:1984-04-30

    CPC classification number: A01N25/18 A01N59/02 A01N59/04 A01N59/06

    Abstract: The invention is directed to compositions for the fumigation of soils, enclosed spaces, agricultural products and other commodities, etc., using compositions which decompose to form carbon disulfide and certain other biocidal materials. Such fumigation can be used to control bacteria, fungi, insects, nematodes, rodents, and weeds. A composition is provided which is an aqueous solution of ammonium, alkali metal or alkaline earth metal thiocarbonate or a mixture thereof, comprising an added base, the concentration of the added base being sufficient to produce a pH above 7 in the solution: These "thiocarbonates," include, without limitation, salts of trithiocarbonic acid and tetrathiocarbonic acid, compositions having empirical formulae intermediate to these acid salts (such as MCS 3.7 , wherein M is a divalent metal ion), and compositions containing substances in addition to thiocarbonates [such as a stabilized ammonium tetrathiocarbonate which contains ammonium sulfide, i.e. (NH 4 )- 2 CDS 4 (NH 4 ) 2 S]. The compositions are generally water soluble and can be prepared, stored, and used in aqueous solutions. The thiocarbonate solutions of the invention are stable during prolonged periods of storage in a closed container, exhibit a low vapor pressure, and are not flammable. For soil fumigation, thiocarbonates can be mixed with fertilizers to provide a multi-functional application.

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