Boric anhydride
Boric anhydride (CAS 1303-86-2), molecular formula B2O3, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- Boron trioxide

| Molecular weight | 69.62 |
|---|---|
| Empirical formula | B2O3 |
| Assay | 99.999% trace metals basis |
| Density | 2.46 g/mL at 25 °C(lit.) |
| Vapour density | >1 (vs air) |
| Melting point | 450 °C(lit.) |

Hazard statements
- H360FD
Precautionary statements
- P201Obtain special instructions before use
- P308IF exposed or concerned
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | T |
| Risk statements (R) | 60-61 |
| Safety statements (S) | 53-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Boric anhydride?
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Boric anhydride (CAS 1303-86-2), molecular formula B2O3, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.
What grades of Boric anhydride does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Boric anhydride in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Boric anhydride?
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Boric anhydride has CAS number 1303-86-2 and molecular formula B2O3. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Boric anhydride?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Boric anhydride ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Boric anhydride be stored?
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Store Boric anhydride in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Boric anhydride used for?
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Boric anhydride is used in catalysis & inorganic applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Boric anhydride?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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