Zinc Foil
Zinc Foil
Main Highlights
- Molecular Weight: 65.38
- Appearance: Shiny silvery-grey metal
- Melting Point: 420 °C
- Boiling Point: 907 °C
- Density: 7.14 g/cm3 (20 °C)
- Solubility in H2O: N/A
- Electrical Resistivity: 59.0 nΩ·m (20 °C)
- Electronegativity: 1.65 Paulings
- Heat of Fusion: 7.32 kJ/mol
- Heat of Vaporization: 115 kJ/mol
- Poisson’s Ratio: 0.25
- Specific Heat: 0.39 J/g·°C (25 °C)
- Thermal Conductivity: 116 W/(m·K)
- Thermal Expansion: 30.2 µm/(m·K) (25 °C)
- Young’s Modulus:108 GPa
Description and Specifications of Zinc Foil
Zinc Foil metal is well known for its exceptional formability, corrosion resistance, and glossy look. Its limitless recyclability and low-impact production processes emphasize its environmentally beneficial qualities. Zinc is also an essential mineral that has several health advantages.
High-purity zinc foil is available in various sizes and thicknesses, making it suitable for research and industrial applications. It is particularly valuable for corrosion protection coatings on steel and is ideal for prototyping, testing, and small—to medium-scale production.
Zinc foil is derived from cast ingots and can be utilized in various specialized processes. It is available in ultra-high purity (99.9+%) for applications such as thermal and electron beam (E-beam) evaporation, low-temperature organic evaporation, and atomic layer deposition (ALD). These processes are especially relevant for fuel cells and solar energy technologies.
Zinc foils range in thickness from 0.003 inches to about 2 mm. Some are rolled down to as thin as 0.001 inches for use in durable coatings, optics, magnetics, and microelectronics. These foils guarantee high quality for various industrial applications and are made using sophisticated purification processes such as sublimation, solid-state procedures, and crystallization.
Technical Specification
| Technical Specifications of Zinc Foil | |
|---|---|
| Product Name | Zinc Foil |
| Material | High-Purity Zinc (Zn) |
| Chemical Symbol | Zn |
| Purity | 99.9+% (High-Purity Grades Available) |
| Molecular / Atomic Weight | 65.38 g/mol |
| Appearance | Shiny Silvery-Grey Metallic Foil |
| Form | Thin Metallic Sheet / Foil |
| Density | 7.14 g/cm³ at 20°C |
| Melting Point | 420°C |
| Boiling Point | 907°C |
| Electrical Resistivity | 59.0 nΩ·m at 20°C |
| Electrical Conductivity | Good |
| Thermal Conductivity | 116 W/m·K |
| Specific Heat | 0.39 J/g·°C at 25°C |
| Thermal Expansion | 30.2 µm/(m·K) at 25°C |
| Young’s Modulus | 108 GPa |
| Poisson’s Ratio | 0.25 |
| Electronegativity | 1.65 Pauling |
| Heat of Fusion | 7.32 kJ/mol |
| Heat of Vaporization | 115 kJ/mol |
| Solubility in Water | Not Applicable / Insoluble |
| Typical Thickness Range | 0.003 inch to Approximately 2 mm |
| Ultra-Thin Availability | Available Down to Approximately 0.001 inch for Specialized Applications |
| Corrosion Resistance | Excellent; Provides Sacrificial Corrosion Protection |
| Ductility & Malleability | Good; Becomes More Formable at Approximately 100–150°C |
| Chemical Resistance | Good Resistance to Various Alkalis and Moderate Chemical Environments |
| Surface Behavior | Forms a Protective Zinc Carbonate / Oxide Layer During Atmospheric Exposure |
| Non-Sparking Property | Suitable for Certain Explosion-Proof Applications |
| Deposition Compatibility | Suitable for Thermal Evaporation, E-Beam Evaporation and Atomic Layer Deposition (ALD) |
| Typical Applications | Corrosion Protection, Sacrificial Anodes, Thermal Spraying, Capacitors, Grounding, Fuel Cells, Solar Energy, Thin-Film Deposition, Microelectronics, Automotive Components and Research Applications |
| Storage Conditions | Store in a Cool, Dry, Well-Ventilated Area and Protect from Moisture and Contamination |
Features of Zinc Foil
- Resistance to Corrosion: Zinc foil is perfect for protective applications because it is resistant to corrosion. It acts as a sacrificial anode and protects other metals from oxidation.
- Electrical Conductivity: It can be utilized for grounding and as a conductive layer in circuits.
- Ductility and Malleability: This characteristic makes it easy to shape and form without breaking, which is helpful for various uses, such as decoration and packaging. At room temperature, it is brittle; however, it softens when exposed to temperatures between 100°C and 150°C. It becomes brittle again when heated above 200°C.
- Resistance to Chemical: Its resistance to moderate acids and various alkalis increases its applicability in chemical processing and storage settings.
- Compact: It is easier to handle and transport. The automobile and aerospace sectors benefit from this trait.
- Thermal Conductivity: Because of its thermal conductivity, zinc foil can be used in applications that need heat dissipation, which is especially useful in lighting and electronics.
- Non-Toxic: Since zinc is a non-toxic metal, it is a suitable choice for applications involving medical supplies or food packaging.
- Biocompatibility: Wound dressings and other medical supplies can be made with zinc foil without causing negative side effects.
- Properties of Adhesion: Applications like sealing and insulation benefit from its sticky qualities.
- Adaptability: Zinc foil comes in different thicknesses. Customization according to particular application requirements is possible because of flexibility.
- Chemical activeness: At normal temperature, its surface forms a thin, thick layer of basic zinc carbonate, which helps halt further oxidation. It burns with a distinctive blue-green flame and oxidizes at about 225°C.
Applications of Zinc Foil
Zinc foil is widely utilized across various industries. It is primarily employed in thermal spraying to create anticorrosion coatings for structures such as containers, bridges, headframes, storage tanks, electric transmission towers, poles, and traffic equipment. Its excellent electrical conductivity also makes it essential in manufacturing capacitors, metal brackets, nodular cast iron pipes, galvanized steel components, steel cords, and automotive parts.
Zinc’s non-sparking nature makes it suitable for explosion-proof equipment, mainly underground applications. It is also extensively used to produce instrument parts, shells, and coins. Beyond these applications, zinc plays a significant role in industries such as rubber, paint, enamel, medicine, printing, and fiber manufacturing, owing to its versatile chemical properties.
Zinc Foil Comparison
| Parameter | Zinc Foil | Copper Foil | Nickel Foil | Titanium Foil |
|---|---|---|---|---|
| Material | Zinc (Zn) | Copper (Cu) | Nickel (Ni) | Titanium (Ti) |
| Typical Purity | 99.9+% | High Purity / 100% Copper Grade | 99.5–99.99% | High-Purity Titanium / Titanium Alloy |
| Density | 7.14 g/cm³ | 8.96 g/cm³ | 8.90 g/cm³ | 4.54 g/cm³ |
| Melting Point | 420°C | 1083.4°C | 1455°C | 1668°C |
| Electrical Resistivity | 5.90 µΩ·cm | 1.678 µΩ·cm | 6.99 µΩ·cm | 42.0 µΩ·cm |
| Electrical Conductivity | Good | Outstanding | Good | Moderate |
| Thermal Conductivity | 116 W/m·K | ~401 W/m·K | 90.9 W/m·K | 21.9 W/m·K |
| Corrosion Resistance | Excellent for Sacrificial Protection | Good | Excellent | Outstanding |
| Oxidation Behavior | Forms a Protective Surface Layer | Moderate Oxidation Resistance | Excellent | Excellent |
| Mechanical Strength | Moderate | Good | High | Very High |
| Weight | Moderate | Heavy | Heavy | Lightweight |
| Ductility / Formability | Good; Temperature Dependent | Excellent | Excellent | Excellent |
| Solderability | Good with Proper Process Control | Excellent | Good | Limited |
| Magnetic Properties | Non-Magnetic | Non-Magnetic | Ferromagnetic | Non-Magnetic |
| Corrosion Protection | Excellent | Limited | Very Good | Excellent |
| Sacrificial Anode Applications | Excellent | Not Preferred | Not Preferred | Not Preferred |
| Thin-Film Deposition | Excellent | Excellent | Excellent | Excellent |
| Electronics Applications | Good | Excellent | Excellent | Very Good |
| Battery / Energy Applications | Good | Excellent | Excellent | Good |
| High-Temperature Applications | Limited | Good | Very Good | Excellent |
| Chemical Processing | Good | Good | Excellent | Excellent |
| Typical Applications | Galvanic Protection, Sacrificial Anodes, Capacitors, Thin Films, Solar Energy, Thermal Spraying | PCBs, Batteries, Flexible Circuits, EMI Shielding, Heat Transfer | Batteries, Fuel Cells, Electrochemistry, Heating Elements, EMI Shielding | Aerospace, Fuel Cells, MEMS, Sensors, Chemical Processing |
| Best Choice For | Corrosion Protection, Coatings & Sacrificial Anode Applications | Maximum Electrical & Thermal Conductivity | Electrical Applications Requiring Corrosion Resistance | Lightweight, High-Strength & Corrosive Environments |
| Key Advantage | Excellent Sacrificial Corrosion Protection & Easy Formability | Superior Electrical & Thermal Conductivity | Excellent Balance of Conductivity & Durability | Outstanding Strength-to-Weight Ratio & Corrosion Resistance |
Why Choose Zinc Foil?
- High-purity zinc foil available in 99.9+% grades
- Excellent sacrificial corrosion protection for steel and other metals
- Good electrical conductivity for grounding and conductive layers
- Thermal conductivity of approximately 116 W/m·K
- Suitable for thermal evaporation, E-beam evaporation and ALD
- Easy to form and fabricate for research and industrial applications
- Suitable for capacitors, fuel cells, solar energy and microelectronics
- Available in thin and ultra-thin foil configurations
How to use zinc foil?
- To ensure a proper fit, cut zinc foil sheets to the exact size needed, ensuring smooth edges.
- Properly clean the surface to remove moisture, oil, or dust to ensure correct adherence.
- Remove the liner and press the foil firmly against the prepared surface to remove wrinkles or air pockets from the adhesive-backed foil.
- Solder zinc foil pieces or join them to other metals while maintaining proper temperature control to prevent damage in metalworking.
- After installation, if required, apply a sealer or protective coating to increase longevity and prevent corrosion.
Why Choose Us?
Premium zinc foil sheets and related products are the focus of Techinstro, a well-known brand in the chemical industry. Our reputation is built as a manufacturer and supplier of exceptional quality at a reasonable price. Our skilled personnel guarantee that every product meets quality standards, and our flexible offers allow consumers to customize purchases to meet their specific needs. Our happiness lies in ensuring that orders are delivered on time. Working with a dependable industry leader known for precision and excellence in cutting-edge chemical products is what choosing Techinstro means.
FAQ's
Zinc foil purity is 99.9+% available for evaporation/ALD applications.
The molecular formula is Zn, and the molecular weight is 65.38 g/mol.
The color is Shiny silvery-grey, and it is in metal foil form.
The density is 7.14 g/cm³ (at 20 °C).
The melting point is 420 °C.
The boiling point is 907 °C.
The electrical resistivity is 59.0 nΩ·m (at 20 °C).
The thermal conductivity is 116 W/(m·K).
The thermal expansion is 30.2 µm/(m·K) (at 25 °C).
The specific heat is 0.39 J/g·°C (at 25 °C).
Yes, it acts as a sacrificial anode and protects other metals from oxidation; it forms a protective basic zinc carbonate layer.
Yes, but brittle at room temperature; it softens between 100–150 °C and becomes brittle again above 200 °C.
Yes, usable for grounding and as a conductive layer in circuits.
Anticorrosion thermal-spray coatings (bridges, tanks, towers), capacitors, galvanized steel, automotive parts, coins, explosion-proof equipment, plus rubber, paint, medicine, and printing industries.
Processes such as Thermal and E-beam evaporation, low-temperature organic evaporation, and atomic layer deposition (ALD).