Monosodium Acid Methane Arsonate Sesquihydrate is primarily used as a herbicide in agricultural practices. It is effective in controlling a wide range of weeds in crops such as cotton, sugarcane, and rice. The chemical works by inhibiting the growth of unwanted plants, thereby enhancing crop yield and quality. Additionally, it is utilized in non-crop areas like industrial sites and railways to manage vegetation and prevent overgrowth. Its application is often carried out through spraying, ensuring targeted and efficient weed control. Proper handling and adherence to safety guidelines are essential to minimize environmental impact and ensure effective use.