Boric Acid

The primary industrial use of boric acid is in the manufacture of monofilament fiberglass. In the jewelry industry, it is often used in combination with denatured alcohol to reduce surface oxidation and it is used in the production of the glass in LCD flat panel displays.


Molar Weight61.831 g/mol
Melting Point170,9 °C
Boiling Point300 °C
Density1.014 g/cc
FormsWhite, Crystalline

Uses and Applications

Key applications

  • Fabric, textile and leather products
  • Preservative
  • Agricultural
  • Cosmetic products
  • Electronics
  • Paint and Coatings


  • Pharma
  • Oil & Gas
  • Cleaning
  • Coatings & Construction
  • Polymers
  • Cosmetics
  • Water Treatment
  • Food
  • Agrobusiness
  • Lubricants

Synonyms: Boracic acid, Borofax, Boron Trihydroxide, Boron (III) hydroxide, Optibor, Orthoboric acid, Sassolitt, Trihydroxyborane

Chemical Formula: B(OH)3

CAS Number: 10043-35-3, 11113-50-1