Boron Trioxide

B₂O₃

IUPAC: Diboron trioxide

CAS: 1303-86-2

概要

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.

組成

元素 記号 原子 原子質量
Boron B 2 10.8100
Oxygen O 3 15.9990

元素組成

B
Boron ×2
31.1%
O
Oxygen ×3
68.9%

用途

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

豆知識

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

安全性

  • ⚠ Mild skin and eye irritant

Structure

SMILES

B12OB(O1)O2

特性

タイプ
oxide
状態
solid
モル質量
69.62 g/mol
密度
2.4600 g/cm³
融点
450.0 °C
沸点
1860.0 °C
溶解度
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

別名

Boron oxide Boric oxide

関連化合物

Bismuth(III) Oxide

Bi₂O₃

Carbon Monoxide

CO

Chromium Trioxide

CrO₃

Cobalt(II) Oxide

CoO

Copper(I) Oxide

Cu₂O

Lithium Nickel Manganese Cobalt Oxide

LiNi₀.₃₃Mn₀.₃₃Co₀.₃₃O₂

Gallium(III) Oxide

Ga₂O₃

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

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).