How Does Aluminium Phosphide Work As A Pesticide?

Aluminium phosphide is a highly toxic pesticide that is widely used for fumigation of stored grains and other agricultural products. It works by releasing phosphine gas when it comes into contact with moisture in the air or in the target environment.

The active ingredient in aluminium phosphide is a solid tablet or pellet containing aluminum phosphide, which is a grayish-green powder. When exposed to air or moisture, the aluminum phosphide reacts with water to release phosphine gas (PH3). This gas is highly toxic to insects, rodents, and other pests, and it kills them by interfering with their cellular respiration and inhibiting enzymes required for energy production.

Aluminum phosphide is applied as a fumigant by placing tablets or pellets in sealed containers or structures such as warehouses, silos, and shipping containers. The fumigant gas diffuses into the target area and penetrates the pest habitats, killing them within a few hours to several days, depending on the concentration and exposure time.

However, aluminum phosphide can be hazardous if not handled properly, as it can also pose a serious risk to humans and other animals. Therefore, it should only be used by trained professionals who follow strict safety protocols and regulations for its handling, storage, and application.