Tin(IV) Oxide

SnO₂

IUPAC: Tin(IV) oxide

CAS: 18282-10-5

Overview

Tin(IV) oxide is the most important tin ore (cassiterite) and has been mined since the Bronze Age. It is a wide-bandgap n-type semiconductor used in transparent conductive coatings. Tin oxide coatings on glass provide electrical conductivity while remaining transparent.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 2 15.9990
Tin Sn 1 118.7100

Elemental Composition

O
Oxygen ×2
21.2%
Sn
Tin ×1
78.8%

Uses

  • • Tin ore (cassiterite)
  • • Transparent conductive coatings on glass
  • • Gas sensors
  • • Ceramic opacifier

Fun Facts

  • ✦ Bronze Age civilizations were built on tin mining — cassiterite was one of the most sought-after minerals

Safety

  • ⚠ Low toxicity
  • ⚠ Dust inhalation may irritate lungs

Structure

SMILES

[O-2].[O-2].[Sn+4]

Properties

Type
oxide
State
solid
Molar Mass
150.71 g/mol
Density
6.9500 g/cm³
Melting Point
1630.0 °C
Boiling Point
1800.0 °C
Solubility
insoluble

Molecular Descriptors

Exact Mass
151.8920
TPSA
2.0 Ų
H-Bond Donors
0
H-Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
3
Complexity
0.0

Also Known As

Stannic oxide Cassiterite

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 Tin(IV) Oxide?
Tin(IV) Oxide (SnO₂) is a oxide compound with the IUPAC name Tin(IV) oxide.
What is the molecular weight of Tin(IV) Oxide?
Tin(IV) Oxide has a molar mass of 150.71 g/mol.
What state is Tin(IV) Oxide at room temperature?
Tin(IV) Oxide is a solid at room temperature.
Is Tin(IV) Oxide organic or inorganic?
Tin(IV) Oxide is classified as an inorganic compound.
What elements make up Tin(IV) Oxide?
Tin(IV) Oxide (SnO₂) is composed of Oxygen (O), Tin (Sn).