Boron Trioxide

B₂O₃

IUPAC: Diboron trioxide

CAS: 1303-86-2

Aperçu

Boron trioxide is a glassy solid that is one of the most important boron compounds. It is a key component of borosilicate glass (Pyrex), which has low thermal expansion and high resistance to thermal shock. It is also used as a flux in metallurgy.

Composition

Élément Symbole Atomes Masse atomique
Boron B 2 10,8100
Oxygen O 3 15,9990

Composition élémentaire

B
Boron ×2
31,1%
O
Oxygen ×3
68,9%

Usages

  • • Borosilicate glass (Pyrex) production
  • • Metallurgical flux
  • • Fiberglass production
  • • Flame retardant

Le saviez-vous

  • ✦ Pyrex glass gets its thermal shock resistance from the addition of boron trioxide

Sécurité

  • ⚠ Mild skin and eye irritant

Structure

SMILES

B12OB(O1)O2

Propriétés

Type
oxide
État
solid
Masse molaire
69,62 g/mol
Densité
2,4600 g/cm³
Point de fusion
450,0 °C
Point d'ébullition
1860,0 °C
Solubilité
22 g/L at 25°C

Molecular Descriptors

Exact Mass
70,0034
TPSA
27,7 Ų
H-Bond Donors
0
H-Bond Acceptors
3
Rotatable Bonds
0
Heavy Atoms
5
Complexity
33,0

Aussi connu sous le nom de

Boron oxide Boric oxide

Composés associés

Copper(I) Oxide

Cu₂O

Aluminum Oxide

Al₂O₃

Beryllium Oxide

BeO

Calcium Oxide

CaO

Copper(II) Oxide

CuO

Molybdenum Trioxide

MoO₃

Magnesium Oxide

MgO

Manganese Dioxide

MnO₂

Tin(IV) Oxide

SnO₂

Cadmium Oxide

CdO

Frequently Asked Questions

What is Boron Trioxide?
Boron Trioxide (B₂O₃) is a oxide compound with the IUPAC name Diboron trioxide.
What is the molecular weight of Boron Trioxide?
Boron Trioxide has a molar mass of 69.62 g/mol.
What state is Boron Trioxide at room temperature?
Boron Trioxide is a solid at room temperature.
Is Boron Trioxide organic or inorganic?
Boron Trioxide is classified as an inorganic compound.
What elements make up Boron Trioxide?
Boron Trioxide (B₂O₃) is composed of Boron (B), Oxygen (O).