Boron oxide (B2O3)

CAS Registry Number®

1303-86-2
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CAS Name

Boron oxide (B2O3)

Molecular Formula

B2O3

Cite this Page

Boron oxide (B2O3).   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/ChemicalDetail.aspx?ref=1303-86-2 (retrieved 2024-03-19) (CAS RN: 1303-86-2).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    ~1860 °C (approx)
  • Melting Point (1)

    450 °C
  • Density (1)

    2.46 g/cm³

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

Other Names for this Substance

  • Boron oxide (B2O3)
  • Boric oxide
  • Boron sesquioxide
  • Boron trioxide
  • Fused boric acid

Deleted or Replaced CAS Registry Numbers

12640-42-5, 56116-04-2, 56145-44-9, 56312-91-5, 56312-92-6, 56312-93-7, 56312-94-8, 91863-27-3, 102967-73-7, 144919-64-2, 163701-88-0, 1858211-82-1, 2566446-91-9

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