Description

Tantalum CAS NO 7440-25-7 is a rare, lustrous, blue-gray transition metal known for its exceptional corrosion resistance, high melting point, and excellent biocompatibility. Its unique properties make it a critical material for demanding applications where reliability and longevity are paramount. This metal is essential for industries including electronics, chemical processing, medical implants, and aerospace, where performance under extreme conditions is required.

Application

• Electronics: Production of high-performance capacitors for smartphones, computers, and automotive electronics due to its excellent dielectric properties.
• Chemical Processing: Fabrication of corrosion-resistant equipment like heat exchangers, reactor linings, and piping for handling aggressive acids.
• Medical Devices: Used in surgical implants, such as bone screws and cranial plates, because of its biocompatibility and non-reactivity with bodily fluids.
• Aerospace & Defense: Component material for jet engine parts, missile systems, and superalloys that must withstand high temperatures and stress.
• Sputtering Targets: High-purity tantalum targets for physical vapor deposition (PVD) to create thin, protective coatings on semiconductors and optical components.
• Superconducting Alloys: Key element in alloys like tantalum-niobium (TaNb) used in superconducting magnets for MRI machines and particle accelerators.

Basic Information

Product Name	Tantalum
CAS No.	7440-25-7
Molecular Formula	Ta
Molecular Weight	180.95 g/mol
Synonyms	Tantalum-181; Tantalum metal; Tantalum powder; Tantalum foil; Tantalum wire; Tantalum rod; Tantalum sheet; Tantalum granules
EINECS	231-135-5

Quality Control

Our tantalum products are manufactured and tested to meet stringent industry specifications. Quality is assured through advanced analytical techniques including ICP-OES/MS for impurity profiling and GD-MS for ultra-trace analysis. We provide material with purity levels ranging from standard industrial grade (99.9%) to high-purity grades (99.99% and above). A Certificate of Analysis (COA) detailing lot-specific results for purity, metallic impurities, and interstitial elements (O, N, C, H) is supplied with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and strong oxidizers. For fine powders, store under an inert atmosphere (e.g., argon) to minimize surface oxidation. Maintain ambient temperature conditions (15-25°C).

Specification

Item	Specification
Appearance	Blue-gray metallic solid (powder, foil, rod, sheet)
Assay (Tantalum)	≥ 99.9% (99.95%, 99.99% available)
Identification (XRD)	Conforms to standard
Niobium (Nb)	< 100 ppm
Iron (Fe)	< 30 ppm
Nickel (Ni)	< 20 ppm
Oxygen (O)	< 100 ppm
Nitrogen (N)	< 30 ppm
Carbon (C)	< 30 ppm
Particle Size (Powder)	Customizable (-100 mesh, -325 mesh, etc.)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.