Description

Germanium is a lustrous, hard, grayish-white metalloid in the carbon group, known for its semiconductor properties and high refractive index. This element is critical for advanced electronics and infrared optics, offering unique electrical and optical characteristics not easily replicated by other materials. It is essential for manufacturers in the semiconductor, fiber-optic, and infrared technology industries seeking high-purity materials for precision components.

Application

• Semiconductor Manufacturing: Used as a substrate for high-efficiency solar cells and in transistors for specific electronic applications.
• Infrared (IR) Optics: A key material for lenses, windows, and domes in thermal imaging systems, night-vision equipment, and spectroscopic instruments due to its transparency to infrared light.
• Fiber-Optic Systems: Employed as a dopant in the core of optical fibers to increase the refractive index and enhance signal transmission.
• Polymerization Catalysts: Serves as a catalyst, particularly in the form of germanium dioxide, for the production of polyethylene terephthalate (PET) plastic.
• Alloying Agent: Added to alloys, such as certain aluminum and magnesium alloys, to improve strength and other metallurgical properties.
• Phosphors: Utilized in some fluorescent lamps and solid-state lighting applications.
• Medical & Research: Investigated for use in certain chemotherapeutic agents and as a component in γ-ray detection crystals.

Basic Information

Product Name	Germanium
CAS No.	7440-56-4
Molecular Formula	Ge
Molecular Weight	72.63 g/mol
Synonyms	Germanium element; Germanium metal; Germanium-72; Germanium lump; Germanium powder; Germanium ingot; Germanium wafer; Germanium single crystal
EINECS	231-164-3

Quality Control

Our Germanium is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity levels suitable for demanding industrial applications. We provide comprehensive quality documentation, including detailed Certificates of Analysis (COA) that report key parameters such as purity and metallic impurities. Our quality systems are designed to meet the stringent requirements of the electronics and optics industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids and strong oxidizing agents. For long-term storage of high-purity grades, an inert atmosphere is recommended to prevent surface oxidation.

Specification

Item	Specification
Appearance	Grayish-white, metallic solid
Form	Lump, Powder, Ingot, Wafer
Purity (Ge basis)	≥ 99.99% (4N), 99.999% (5N), 99.9999% (6N)
Identification (XRD)	Conforms to standard
Major Metallic Impurities (ICP-MS)	Al, Ca, Cu, Fe, Ni, Pb, Si, Zn < 1-10 ppm each (grade dependent)

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