Boron Oxide

Boron oxide is a colorless glassy solid that is used as an insecticide  fluxing agent  and bonding agent. It is also known as boric oxide or boria. Boron oxide (B₂O₃), also known as boric oxide or diboron trioxide, is a colorless, glassy solid formed by the dehydration of boric acid. It is a key compound used in various industries, including glass, ceramics, and electronics, and is known for its high-temperature resistance and ability to act as a fluxing agent. 

TECHNICAL SPECIFICATON::

• Chemical Formula: B2O3
• CAS Number: 1303-86-2
• Appearance: Colorless, semi-transparent glassy lumps or hard white odorless crystals.
• Molecular Weight: 69.62 g/mol
• Melting Point: ~450 °C (lit.)
• Boiling Point: ~1860 °C (lit.)
• Density: ~2.46 g/mL at 25 °C (lit.)
• Bulk Density: ~900-1100 kg/m3
• Solubility: Moderately soluble in water
• Hygroscopic: Yes 
• B2O3 Content: 98.00% min
• SO4 Content: 500 ppm max
• Cl Content: 10 ppm max
• Fe Content: 35 ppm max 
• Size Content +0.250 mm: 35.00% max 

APPLICATION::

Glass and Ceramics:

• Borosilicate Glass: Boron oxide is a key ingredient in borosilicate glass, known for its high thermal resistance and chemical durability, making it suitable for applications like laboratory glassware, cookware, and ovenware. 
• Fluxing Agent: It acts as a flux in the production of glass and enamels, lowering the melting temperature and improving the flow of the molten materials. 
• Glass Fibers: Boron oxide is used as an additive in glass fibers, including optical fibers. 
• Ceramic Applications: It's used as a bonding agent in the hot isostatic pressing of boron nitride ceramics and as a flux for glazes and enamels. 

Dosage

Chemical Synthesis and Catalysis:

• Starting Material: Boron oxide serves as a starting material for the synthesis of other boron compounds, such as boron carbide. 
• Acid Catalyst: It acts as an acid catalyst in organic synthesis and the preparation of boron halides, sodium borohydride, metallic borates, and borate esters. 
• Chemical Intermediate: It's used as a chemical intermediate in the production of boron halides, esters, carbide, nitride, and metallic borides. 

Remarks

Other Applications:

• Insecticide: Boron oxide can be used as an insecticide, targeting the nervous system of insects. 
• Dopant in Semiconductors: It's used as a dopant in semiconductor materials. 
• High-Temperature Lubricants: Boron oxide is used as an additive in high-temperature lubricants. 
• Nuclear Waste Glasses: Boron oxide is commonly substituted for silica in nuclear waste glasses, improving their properties. 
• Protective Coating: Boron oxide can be used to protect carbon anodes from air oxidation.