Germanium Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7440-56-4 |
| Product name | Germanium |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeElectronic GradeMaterial GradeIndustrial GradeSpecialty Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Germanium
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Germanium Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Germanium
| Industry | Application | Process |
|---|---|---|
| Semiconductors | Manufacturing semiconductor materials | Doped into silicon or used standalone to fabricate transistors and diodes |
| Fiber-optic communications | Fiber-optic doping agent | Doped into silica-based optical fibers to increase refractive index |
| Infrared optics | Infrared lenses and windows | Single-crystal germanium used to manufacture infrared optical components |
| Solar cells | High-efficiency solar cells | Used as the bottom-layer material in multi-junction solar cells |
| Catalysis | Catalyst for chemical reactions | Employed as a catalyst in certain hydrogenation and dehydrogenation reactions |
| Medical devices | Fluorescence imaging and radiation detection | Used to produce X-ray and gamma-ray detection materials |
| Aerospace | High-performance electronic devices | Integrated into electronic components for operation under extreme conditions |
| Electronic devices | Field-effect transistors (FETs) | Used as channel material in high-mobility devices |
Manufacturing Quality Control of Germanium
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Germanium Content Determination | Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) | Utilizes a high-temperature plasma to excite germanium elements in the sample, quantifying germanium content based on the intensity of its characteristic emission spectrum. Offers high sensitivity and is suitable for simultaneous multi-element analysis; widely used for germanium determination in ores, materials, and environmental samples. |
| Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Ionizes the sample and detects isotopic signals of germanium using a mass spectrometer. Provides extremely high sensitivity and accuracy, ideal for trace and ultra-trace level detection of germanium. | |
| Spectrophotometry (Colorimetric Method) | In acidic conditions, germanium reacts with molybdate to form heteropoly acids, which are then reduced to molybdenum blue. Absorbance is measured at a specific wavelength (e.g., 650 nm) to calculate germanium concentration. Simple to operate and suitable for routine analysis, though susceptible to interferences. | |
| Impurity Element Analysis | ICP-AES / ICP-MS | Simultaneously detects various metallic impurities (e.g., Fe, Al, Cu, Ni) in germanium samples, ensuring purity requirements for high-purity germanium materials such as semiconductor-grade germanium. |
| Atomic Absorption Spectroscopy (AAS) | Quantifies germanium by measuring the absorption of light at a specific wavelength by germanium atoms in vapor form. Suitable for single-element analysis but offers lower sensitivity compared to ICP methods. | |
| Phase and Chemical State | X-ray Photoelectron Spectroscopy (XPS) | Analyzes the chemical states (e.g., Ge⁰, Ge⁴⁺) of germanium on the surface, used to study oxidation levels or compound forms, commonly applied in high-purity materials and thin film analysis. |
| X-ray Diffraction (XRD) | Identifies the form of germanium (e.g., elemental germanium, germanium dioxide) by crystal structure, used for phase identification and purity assessment. | |
| Carbon, Oxygen, and Nitrogen Content | Inert Gas Fusion - Infrared/Thermal Conductivity Method (Leco Method) | The germanium sample is melted in a high-temperature inert atmosphere, releasing gases such as CO, CO₂, and N₂, which are then detected by infrared or thermal conductivity detectors. Used for controlling non-metallic impurities in high-purity germanium. |
Technical Specifications of Germanium
| Test Item | Specification |
|---|---|
| Appearance | Grayish metallic powder |
| Purity | >=99.0% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.2% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.5% |
| Melting Point | 937.4°C |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Germanium
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Germanium
Industrial Germanium Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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