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- About Us
Tin
Tin (Sn) is a soft, silvery-white metal known for its malleability, low melting point, and excellent corrosion resistance. It melts at 231.9 °C and exhibits good ductility and thermal conductivity. Tin forms a protective oxide layer that prevents further oxidation, making it valuable for coating other metals.
Goodfellow’s Tin product range, including Tin Bars, Tin Coils (rolled sheets), and Tin Sputtering Targets, is essential for advanced research and industrial applications. Known for its excellent corrosion resistance and solderability, Tin is crucial in electronics, metallurgy, and nanotechnology. Our high-purity Tin products, such as Tin Foil (Light Tight) and tin powder, are sought after in semiconductor research, precision engineering, and microelectronics, enabling advancements in surface coatings and energy storage technologies. Tin’s unique properties make it indispensable in the development of next-generation materials for energy conversion. Goodfellow’s high-purity tin materials support breakthrough research and development in university laboratories and R&D facilities globally.
Properties
Identifiers
Isotopes
Applications
Grades
Synonyms
General Properties
| Property | Value |
|---|---|
| Atomic Number | 50 |
| Density | 7.31 g/cm³ |
| Melting Point | 231.9 °C |
| Boiling Point | 2602 °C |
| Thermal Conductivity | 66.8 W/m·K |
| Electrical Resistivity | 115 nΩ·m |
| Crystal Structure | Tetragonal (white tin), Cubic (gray tin) |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 14–18 MPa (pure tin) |
| Yield Strength | 12–15 MPa |
| Young’s Modulus | 50 GPa |
| Hardness | Brinell 4–5 |
| Elongation at Break | 40–50% |
| Poisson’s Ratio | 0.36 |
Chemical Properties
| Property | Value |
|---|---|
| Corrosion Resistance | Good, especially in mild acids and alkalis |
| Reactivity | Stable; forms passive oxide layer |
| Oxidation States | +2, +4 |
| Surface Oxide | Tin oxide (SnO2) |
| Identifier | Value |
|---|---|
| Symbol | Sn |
| Atomic Number | 50 |
| CAS Number | 7440-31-5 |
| UN Number | UN3077 (solid), UN3089 (powder) |
| EINECS Number | 231-141-8 |
| Isotope | Type | Notes |
|---|---|---|
| Sn-112 | Stable | 5.79% natural abundance |
| Sn-114 | Stable | 0.66% |
| Sn-116 | Stable | 14.54% |
| Sn-117 | Stable | 7.68% |
| Sn-118 | Stable | 24.22% |
| Sn-119 | Stable | 8.59% |
| Sn-120 | Stable | 32.58% |
| Sn-122 | Stable | 4.63% |
| Sn-124 | Stable | 5.79% |
Scientific Applications
| Use Case | Description |
|---|---|
| Superconductivity Research | Used in low-temperature superconductors and quantum materials |
| Thin-Film Coatings | Tin oxide films for transparent conducting electrodes |
| Nuclear Medicine | Tin isotopes used in diagnostic imaging |
| Sensor Technologies | Tin-based nanomaterials for gas and biosensors |
| Catalysis | Tin catalysts for organic synthesis reactions |
Industrial Applications
| Use Case | Description |
|---|---|
| Soldering | Primary component in lead-free solder alloys for electronics |
| Coatings and Plating | Corrosion-resistant coatings for food packaging and steel |
| Battery Components | Used in lead-acid batteries and emerging battery technologies |
| Organotin Compounds | Biocides, stabilizers, and catalysts in PVC production |
| Glass Manufacturing | Tin oxide used as a polishing agent and coating for glass |
| Grade | Typical Impurities | Applications |
|---|---|---|
| 97.4% (1N74) | Higher impurities (thousands ppm) | Basic industrial use, coatings |
| 98.8% (1N88) | Cu, Pb, Sb, Fe < 1200 ppm | General industrial use, coatings |
| 99.4% (2N4) | Cu, Pb, Sb, Fe < 600 ppm | Basic soldering, alloys |
| 99.75% (2N75) | Cu, Pb, Sb, Fe < 250 ppm | Improved soldering, electronics |
| 99.9% (3N) | Cu, Pb, Sb, Fe < 100 ppm | General purpose, solder, coating |
| 99.95% (3N5) | Cu, Pb, Sb, Fe < 50 ppm | Electronics, research |
| 99.99% (4N) | Cu, Pb, Sb, Fe < 10 ppm | Advanced electronics, thin films, research |
| 99.995% (4N5) | Cu, Pb, Sb, Fe < 5 ppm | Advanced lab, industrial use |
| 99.999% (5N) | Cu, Pb, Sb, Fe < 1 ppm | High-purity research, semiconductor, coatings |
| 99.9999% (6N) | Ultra-low impurities | Cutting-edge research, ultra-high purity applications |
| Synonym |
|---|
| Tin Metal |
| Sn |
| Stannum |
| Étain (French) |
| Estaño (Spanish) |