99.99% Pure Indium Metal – 1 kg
High-purity 99.99% (4N) indium metal for electronics, specialty solders, thermal applications, laboratory research, and alloy manufacturing. Commercial quantities and volume pricing available.
99.99% Pure Indium Metal (4N)
Rock Shot Products supplies 99.99% pure (4N) indium metal for industrial, commercial, laboratory, and research applications.
Each order contains 1 kilogram (2.205 pounds) of high-purity indium metal. Depending on available inventory, an order may consist of one larger ingot or multiple smaller ingots totaling the ordered weight.
Product Specifications
Purity: 99.99% minimum (4N grade)
Weight: 1 kg (2.205 lb)
Form: Ingot
CAS Number: 7440-74-6
Atomic Number: 49
Melting Point: 156.6°C (313.9°F)
Density: 7.31 g/cm³
Appearance: Bright silver metallic
Chemical Composition
Indium (In): 99.99% minimum (4N grade)
Total Impurities: ≤100 ppm
Individual trace-element concentrations may vary by production lot. The 99.99% purity specification represents total indium content and should not be interpreted as a lot-specific analysis of individual trace elements.
Common Uses
- Indium solder and specialty solder alloys
- Semiconductor and electronics manufacturing
- Thermal interface materials
- Vacuum and hermetic sealing
- Thin-film and optical coatings
- Cryogenic applications
- Scientific and laboratory research
- Specialty alloy production
Why Indium?
Indium is a soft, malleable metal with a relatively low melting point of approximately 156.6°C (313.9°F). Its physical and thermal properties make it useful in specialized electronics, soldering, sealing, thermal-management, coating, and research applications.
Indium's ability to deform under pressure also makes it useful in applications requiring conformability and intimate contact between surfaces.
Bulk & Commercial Orders
Need more than one kilogram?
Rock Shot Products supplies indium for commercial, industrial, OEM, laboratory, and production requirements. Contact us for availability and volume pricing on multiple-kilogram and recurring orders.
Product Appearance
Indium is a very soft metal, so ingot shape, surface finish, and minor handling marks may vary. These cosmetic differences do not affect the specified weight or purity.
Frequently Asked Questions
Is this indium 99.99% pure?
Yes. This product is sold as 99.99% minimum (4N grade) indium metal.
Is a lot-specific chemical analysis included?
The 4N designation specifies 99.99% minimum indium purity. Individual trace-element concentrations may vary by production lot. Contact Rock Shot Products before ordering if your application requires documentation or specific impurity limits.
Will I receive one 1 kg ingot?
Not necessarily. Depending on inventory, your order may contain one larger ingot or multiple smaller ingots totaling 1 kilogram.
Does the indium always look exactly the same?
No. Because indium is soft and easily marked, ingot shape and surface appearance can vary while maintaining the specified weight and purity.
