Food Processing Chemicals

Boric Acid And Borax

Boric Acid & Borax

Innova Global (India), we are engaged in offering a qualitative range of Boric Acid/ Borax. Our vendors carefully formulate this boric acid in adherence with the industry laid standards & norms. Offered range of boric acid is highly appreciated among the patrons for its remarkable attributes such as longer shelf life, precise pH value and accurate composition.

  • CAS number: 10043-35-3
  • Molecular formula: H3BO3
  • Molar mass: 61.83 g mol−1
  • Appearance: White crystalline solid
  • Density: 1.435 g/cm3

The primary industrial use of boric acid/ is in the manufacture of monofilament fiberglass usually referred to as textile fiberglass.

Textile fiberglass is used to reinforce plastics in applications that range from boats, to industrial piping to computer circuit boards.

In the jewelry industry, boric acid is often used in combination with denatured alcohol to reduce surface oxidation and firescale from forming on metals during annealing and soldering operations.

Boric acid is used in the production of the glass in LCD flat panel displays.

In electroplating, boric acid is used as part of some proprietary formulas.

Boric acid, mixed with borax (sodium tetraborate decahydrate) at the weight ratio of 4:5, is highly soluble in water, though they are not so soluble separately. The solution is used for fire retarding agent of wood by impregnation.

It is also used in the manufacturing of ramming mass, a fine silica-containing powder used for producing induction furnace linings and ceramics.

Boric acid is one of the most commonly used substances that can neutralize active hydrofluoric acid (HF). It works by forcing the free F− anions into complex salts. This process defeats the extreme toxicity of hydrofluoric acid, particularly its ability to sequester ionic calcium from blood serum which can lead to cardiac arrest and bone decomposition; such an event can occur from just minor skin contact with HF.

Boric acid is added to borax for use as welding flux by blacksmiths.

Boric acid, in combination with silicone oil, is used to manufacture Silly Putty.

Boric acid, in combination with eighty other chemicals, is used in Marcellus Shale hydraulic fracturing.

Physical and Chemical Properties 


Physical state and appearance Solid. (Powdered solid.)
Odor Odorless
Taste Bitter. (Slight.)
Molecular Weight 61.83 g/mole
Color White
pH (1% soln/water) 5.2 [Acidic.]
Boiling Point 300°C (572°F)
Melting Point 169°C (336.2°F)
Critical Temperature Not available
Specific Gravity 1.435 (Water = 1)
Vapor Pressure Not applicable
Vapor Density Not available
Volatility Not available
Odor Threshold Not available
Water/Oil Dist. Coeff. Not available
Ionicity (in Water): Not available
Dispersion Properties See solubility in water, methanol
Solubility Soluble in hot water, methanol. Partially soluble in cold water. Very slightly soluble in acetone.

Stability & Reactivity Data

Stability The product is stable
Instability Temperature Not available
Conditions of Instability High temperatures, dust generation, incompatible materials
Incompatibility with various substances Reactive with alkalis