Sulfur Trioxide

SO₃

IUPAC: Sulfur trioxide

CAS: 7446-11-9

概要

Sulfur trioxide is a key intermediate in sulfuric acid production via the contact process. It reacts vigorously with water.

組成

元素 記号 原子 原子質量
Oxygen O 3 15.9990
Sulfur S 1 32.0600

元素組成

O
60.0%
S
40.0%

用途

  • Sulfuric acid production
  • Sulfonation agent

豆知識

  • SO₃ exists in three solid forms: α, β, and γ polymorphs

安全性

  • ⚠ Corrosive
  • ⚠ Reacts violently with water
  • ⚠ Toxic

Structure

SMILES

O=S(=O)=O

特性

タイプ
oxide
状態
liquid
モル質量
80.06 g/mol
密度
1.9200 g/cm³
融点
16.9 °C
沸点
45.0 °C
溶解度
Reacts violently

Molecular Descriptors

Exact Mass
79.9568
XLogP
-0.5
TPSA
52.2 Ų
H-Bond Donors
0
H-Bond Acceptors
3
Rotatable Bonds
0
Heavy Atoms
4
Complexity
61.0

Frequently Asked Questions

What is Sulfur Trioxide?
Sulfur Trioxide (SO₃) is a oxide compound with the IUPAC name Sulfur trioxide.
What is the molecular weight of Sulfur Trioxide?
Sulfur Trioxide has a molar mass of 80.06 g/mol.
What state is Sulfur Trioxide at room temperature?
Sulfur Trioxide is a liquid at room temperature.
Is Sulfur Trioxide organic or inorganic?
Sulfur Trioxide is classified as an inorganic compound.
What elements make up Sulfur Trioxide?
Sulfur Trioxide (SO₃) is composed of Oxygen (O), Sulfur (S).