Sulfur Dioxide

SO₂

IUPAC: Sulfur dioxide

CAS: 7446-09-5

Overview

Sulfur dioxide is a toxic gas with a pungent smell, produced by volcanic eruptions and industrial processes. It is a major contributor to acid rain.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 2 15.9990
Sulfur S 1 32.0600

Elemental Composition

O
Oxygen ×2
49.9%
S
Sulfur ×1
50.0%

Uses

  • • Wine preservation
  • • Bleaching agent
  • • Sulfuric acid production

Fun Facts

  • ✦ SO₂ is responsible for the distinctive smell near active volcanoes

Safety

  • ⚠ Toxic
  • ⚠ Respiratory irritant
  • ⚠ Contributes to acid rain

Structure

SMILES

O=S=O

Properties

Type
oxide
State
gas
Molar Mass
64.07 g/mol
Density
0.0026 g/cm³
Melting Point
-72.0 °C
Boiling Point
-10.0 °C
Solubility
94 g/L at 25°C

Molecular Descriptors

Exact Mass
63.9619
XLogP
0.1
TPSA
35.1 Ų
H-Bond Donors
0
H-Bond Acceptors
3
Rotatable Bonds
0
Heavy Atoms
3
Complexity
18.0

Related Compounds

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

Barium Oxide

BaO

Beryllium Oxide

BeO

Bismuth(III) Oxide

Bi₂O₃

Boron Trioxide

B₂O₃

Cadmium Oxide

CdO

Calcium Oxide

CaO

Carbon Dioxide

CO₂

Carbon Monoxide

CO

Frequently Asked Questions

What is Sulfur Dioxide?
Sulfur Dioxide (SO₂) is a oxide compound with the IUPAC name Sulfur dioxide.
What is the molecular weight of Sulfur Dioxide?
Sulfur Dioxide has a molar mass of 64.07 g/mol.
What state is Sulfur Dioxide at room temperature?
Sulfur Dioxide is a gas at room temperature.
Is Sulfur Dioxide organic or inorganic?
Sulfur Dioxide is classified as an inorganic compound.
What elements make up Sulfur Dioxide?
Sulfur Dioxide (SO₂) is composed of Oxygen (O), Sulfur (S).