BORIC ACID- ▸ Glass and glass fiber: Boron source for borosilicate glass and fiberglass.
- ▸ Metallurgical flux: Flux for soldering and brazing.
- ▸ Flame retardant: Treats cellulose insulation and textiles.
- ▸ Wood preservation: Used to protect and weatherproof wood.
- ▸ Electroplating: Buffer additive for nickel plating baths.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Boric acid (CAS 10043-35-3, H3BO3) is a weak inorganic acid and boron source. It is used in the manufacture of borosilicate glass and glass fiber, as a flux in metallurgy and soldering, as a flame retardant for cellulose insulation and textiles, and as a wood preservative.
Frequently Asked Questions
What is boric acid commonly used for?
Boric acid (CAS 10043-35-3, H3BO3) is a boron source and weak inorganic acid used industrially in borosilicate glass and glass-fiber manufacture, as a flux for soldering and brazing, as a flame retardant for cellulose insulation and textiles, as a wood preservative, and as a buffer additive in nickel electroplating baths.
What is the chemical formula of boric acid?
Boric acid has the formula H3BO3 (also written BH3O3) and CAS number 10043-35-3. It is a weak inorganic acid and one of the principal industrial sources of boron.
Why is boric acid used in glass and metallurgy?
In glass manufacture boric acid supplies boron oxide for borosilicate glass and glass fiber, lowering thermal expansion. In metallurgy it acts as a flux during soldering and brazing, helping clean metal surfaces and protect them from oxidation during heating.
What grade and packaging is bulk boric acid available in?
RawSource supplies boric acid in industrial bulk packaging for glass, foundry, coatings, and electroplating customers. Specify your intended application and required quantity to receive a grade recommendation; a CoA and SDS accompany each shipment.
What is the cost of bulk boric acid?
Boric acid pricing depends on grade, order volume, and packaging and is quoted per order rather than as a fixed price. Submit a bulk RFQ with your target quantity to get current pricing and lead time.