In biocides and pesticides
There is today a demand to replace hazardous compounds in biocides and pesticides to compounds which are less toxic. Many of the compounds rely on metabolic poisons for their effect. Although effective, an undesirable consequence of their inherent toxicity is the possibility of non-target toxicity, for example exposure to childern and animals. The substances may also be carcinogenic and estrogen mimic, as for example lindane, 1,2,3,4,5,6-hexachlorocyclohexane, which earlier was used as lice infestation of humans. Other substances, for example pyrethrin, is known to be harmful for aquatic life.
Issues assosiated with biocides and pesticides are for example safe storage, transport, and handling of these chemicals due to the potential hazards they present. The result is that special licenses often are required for transporting and/ or applying such chemicals. Also, special licenses are often required for storage, not only for the manufacturor or distributors, but also for the intermittent application of the property.
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Document WO2009002465 A2 discloses a non-hazardous foaming composition for killing and controlling ants. The composition comprises an essential oil, an emulsifier, a carboxylate salt and water. The essential oil is selected from geranium oil, thyme oil, clove oil, citronella oil and eugenol or mixtures thereof. The invention takes advantage of the increase in efficacy available by formulating natural oil emulsions further including an electrolyte such as carboxylate salt.