Orthoboric acid CAS 10043-35-3

CAS No.10043-35-3
Other Name:
Boracic acid;
Boron trihydroxid
MF:BH3O3

Orthoboric acid, also known as boric acid, is a chemical compound with the CAS number 10043-35-3. It has the molecular formula H₃BO₃ and a molecular weight of approximately 61.83 g/mol. This compound is characterized as a weakly acidic hydrate of boric oxide and is commonly found in a white, amorphous powder or colorless crystalline solid form.
Chemical Properties
Molecular Formula: H₃BO₃
Molecular Weight: 61.83 g/mol
Boiling Point: 300°C (decomposes upon heating)
Melting Point: 170.9°C
Solubility: Sparingly soluble in cold water (4.7 g/100 mL at 20°C)
Readily dissolves in hot water (up to 27.5% at 100°C)
Orthoboric acid is recognized for its mild antiseptic, antifungal, and antiviral properties. It is used in various applications, including:
Medical Uses: Treatment for yeast infections, acne, and as an eyewash for bacterial infections.
Industrial Applications: Used in the manufacture of fiberglass, LCD displays, and as a flame retardant. It also serves as a pH buffer in plating processes and is utilized in the production of certain textiles and plastics.
Safety and Handling
Boric acid is generally considered safe when used appropriately, but it can be hazardous in large quantities. It is classified with a health hazard rating of 2, indicating moderate toxicity. Proper safety measures should be taken when handling this compound, especially in industrial settings.
In summary, orthoboric acid (CAS 10043-35-3) is a versatile compound with significant applications in both medical and industrial fields, recognized for its beneficial properties and requiring careful handling due to its moderate toxicity.