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Orthoboric acid CAS#10043-35-3
Basic Information
boric acid
white, shiny powdery or flaky crystals
Orthoboric acid, commonly known as boric acid, is a white crystalline inorganic compound with weak Lewis-acid behavior. It dissolves in water, ethanol, glycerin, ethers, and essential oils, with water solubility increasing on heating, and dehydrates progressively to other boron oxides. It is used in molecular biology buffers and nucleic-acid purification, plant-science studies, and biochemical research.
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High-Purity Orthoboric Acid：Stable white crystalline powder with chemical purity and consistent performance.
Solubility & Reactivity：Readily soluble in water, alcohol, glycerin, and organic solvents, with solubility increasing significantly at higher temperatures.
Thermal Transformation Capability：Dehydrates stepwise to metaboric acid, pyroboric acid, and boron oxide upon heating, suitable for high-temperature processing applications.
Weak Lewis Acid Properties：Mild acidity with good compatibility in formulations, easily purified by recrystallization for high-grade industrial and laboratory use.
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.
Parameters
Safety Information
Delivery Time
Inventory 2-3 working days New manufacturing 7-10 working days
Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!
1. What products does Shandong Junzheng Chemical supply?
We supply inorganic chemicals, organic solvents, water treatment chemicals, and surfactants, including calcium chloride, soda ash, sodium bicarbonate, caustic soda, citric acid, ethyl acetate, and SLES. Please contact us to confirm specific product availability.
2. Which industries do your products serve?
Our products serve pharmaceutical, agrochemical, dye, rubber, construction, coal processing, and other chemical industries. Product suitability depends on the required grade, specifications, and application.
3. How can I get a quotation?
Please provide the product name, CAS number, required specifications, quantity, packaging requirements, and destination port. These details help us prepare an accurate quotation.
4. How do you control product quality?
We follow strict quality testing procedures supported by technical personnel, research equipment, and an established management system. Specific quality requirements can be confirmed before placing an order.
5. Can you help me select a suitable chemical?
Yes. Our technical team can assist with product selection based on your application and required specifications. Please share your intended use and key technical requirements.
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