Products Description of Orthoboric Acid CAS#10043-35-3

Orthoboric acid, commonly known as boric acid (H₃BO₃), is an inorganic crystalline compound formed by dissolving boron trioxide in water. Among boric acids, it has the highest water content and the greatest stability. It appears as white, shiny powdery or flaky crystals, is odorless, slightly bitter, and feels smooth to the touch. Boric acid is soluble in water, ethanol,glycerin, ethers, and essential oils, and its aqueous solution is weakly acidic with typical Lewis acid behavior.

When heated, orthoboric acid gradually dehydrates: forming metaboric acid at 70–100 °C, pyroboric acid at 150–160 °C, and boron oxide (B₂O₃) at about 300 °C. Its solubility in water increases markedly with temperature. The presence of hydrochloric, citric, or tartaric acid enhances its solubility, allowing purification by recrystallization.

Product Application of Orthoboric Acid CAS#10043-35-3

Orthoboric acid is widely used in molecular biology research, including DNA and RNA purification, preparation of biological buffers, and as a reagent in biochemical experiments. It is also applied in plant science to evaluate the effects of boron toxicity on crop growth and antioxidant systems, such as in maize root studies. In biomedical research, boric acid is used to investigate boron absorption and distribution in animal tissues, including studies on uptake in different regions of the brain after injection.