Phosphorous Acid 70

Phosphorous acid (H₃PO₃) is a diprotic acid, meaning it can donate two protons (H⁺) in aqueous solution. It exhibits reducing properties, making it useful in redox reactions. One of its key chemical characteristics is the presence of a P-H bond, which differentiates it from phosphoric acid (H₃PO₄). When heated, phosphorous acid decomposes to form phosphine (PH₃) and phosphoric acid. It reacts with bases to form phosphite salts. Phosphorous acid also acts as a precursor in the preparation of certain organophosphorus compounds. Its oxidation state of phosphorus is +3.

Phosphorous acid is sometimes used as a precursor for phosphite fertilizers, which are slowly absorbed and utilized by plants. Unlike phosphate fertilizers, phosphites can be absorbed through leaves, making them valuable for foliar feeding. They provide a slow-release source of phosphorus that helps promote root growth, strengthen cell walls, and increase resistance to pathogens. Due to its low toxicity, it can be applied safely to a wide range of crops without affecting the soil's natural microbial balance.

горячая этикетка : phosphorous acid 70, China phosphorous acid 70 manufacturers, suppliers, factory