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Phosphine is an attractive fumigant because it is lethal to insects and rodents, but degrades to phosphoric acid, which is non-toxic. As sources of phosphine, for farm use, pellets of aluminium phosphide (AlP), calcium phosphide (Ca 3 P 2), or zinc phosphide (Zn 3 P 2) are used. These phosphides release phosphine upon contact with atmospheric ...
They are toxic to rodents for the same reason they are important to humans: they affect calcium and phosphate homeostasis in the body. Vitamins D are essential in minute quantities (few IUs per kilogram body weight daily, only a fraction of a milligram), and like most fat soluble vitamins , they are toxic in larger doses, causing ...
AlP is used as both a fumigant and an oral pesticide. As a rodenticide, aluminium phosphide pellets are provided as a mixture with food for consumption by the rodents. The acid in the digestive system of the rodent reacts with the phosphide to generate the toxic phosphine gas.
The toxicity of aluminium phosphide is attributed to the liberation of phosphine gas, a cytotoxic compound that causes free radical mediated injury, inhibits vital cellular enzymes and is directly corrosive to tissues. The following reactions release phosphine when AlP reacts with fluids in the body: AlP + 3 H 2 O → Al(OH) 3 + PH 3, and
The gasses used in fumigation (most often phosphine [8]) are highly toxic to both insects and mammals (including humans) [8] but when applied properly, no fumigant will remain in product after treatment is complete. [2] Because of the high toxicity of fumigants, their use is restricted to qualified applicators [2] [7] and areas which can be ...
Phosphine product type covers a share of 5.2% for 2024 in this agricultural fumigant market. Solid form tops in the agricultural fumigant sector, contributing a share of 5.0% for 2024; The agricultural fumigants market in South Korea is predicted to rise by an 8 % CAGR through 2034.
A mixture of food and calcium phosphide is left where the rodents can eat it. The acid in the digestive system of the rodent reacts with the phosphide to generate the toxic gas phosphine. This method of vermin control has possible use in places where rodents immune to many of the common warfarin-type (anticoagulant) poisons have
ZURICH (Reuters) -Israeli attacks on hospitals in Gaza have devastated the Palestinian enclave's health system and raised serious concerns about Israel's compliance with international law, the U.N ...