Tin Oxide, Tin Dioxide, Stannic Oxide, 18282-10-5

Tin Oxide, Tin Dioxide, Stannic Oxide, 18282-10-5

🧪 Tin(IV) Oxide (SnO₂)

Tin(IV) oxide (CAS 18282-10-5), also known as Stannic oxide or Tin dioxide, is a white crystalline inorganic compound. It is widely used in electronics, solar cells, ceramics, catalysts, and glass coatings due to its semiconducting properties and high stability.

1️⃣ Chemical Identity

• Chemical Name: Tin(IV) Oxide

• Formula: SnO₂

• Molecular Weight: 150.71 g/mol

• CAS Number: 18282-10-5

• EC Number: 242-159-0

• Appearance: White crystalline powder

• Density: ~6.95 g/cm³

• Melting Point: ~1,630 °C

• Bandgap: 3.6–4.0 eV (semiconducting)

2️⃣ Physical & Chemical Properties

• Semiconductor Behavior: High electron mobility (up to 260 cm²/V·s), making it ideal for electronic applications.

• Optical Properties: Transparent in visible light; used in coatings and optoelectronics.

• Thermal Stability: Stable at high temperatures.

• Chemical Reactivity: Insoluble in water; reacts with strong acids.

3️⃣ Applications

• Electronics:

  • Transparent conducting oxide in solar cells and displays.

  • Gas sensors and thin-film transistors.

• Glass & Ceramics:

  • Coatings for glass to improve conductivity and transparency.

  • Pigment and glaze additive.

• Catalysis:

  • Catalyst support in organic reactions.

• Energy:

  • Used in lithium-ion batteries and fuel cells.

4️⃣ Synonyms

• Tin dioxide

• Stannic oxide

• Tin(IV) oxide

• SnO₂

5️⃣ Safety & Handling

• Toxicity: Low toxicity; fine powders may irritate eyes and respiratory tract.

• Precautions: Gloves, goggles, and dust masks recommended.

• Storage: Keep in dry, sealed containers; protect from moisture.