China Factory Direct
|
|
| CAS number | 7782-40-3 |
| Product name | MONOCRYSTALLINE POWDER |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeElectronic GradeMaterial GradeReagent Grade |
| Packaging | 25KG/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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Machining & Abrasives | Used as an abrasive for cutting, grinding, and polishing hard materials | Micron-sized diamond powder synthesized via high-temperature, high-pressure (HTHP) methods or chemical vapor deposition (CVD), for manufacturing grinding wheels, saw blades, and drill bits |
| Jewelry | Used as premium gemstones in jewelry fabrication | Naturally mined or synthetically produced via high-pressure, high-temperature (HPHT) or CVD methods; cut, polished, and set after finishing |
| Semiconductors & Electronics | Used as a heat-sink material and semiconductor substrate for high-power, high-frequency electronic devices | Single-crystal or polycrystalline diamond thin films deposited by CVD for thermal management, power devices, and quantum sensing applications |
| Optics | Used for infrared windows, laser output couplers, and high-transmission optical components | High-purity diamond films grown by CVD and precision-polished to optical-grade specifications for windows or lenses |
| Medical | Used for surgical blade coatings, dental burs, and biosensors | Nanodiamond or diamond-like carbon (DLC) thin films deposited onto medical device surfaces to enhance wear resistance and biocompatibility |
| Energy | Used as plasma diagnostic windows and radiation detectors in nuclear fusion devices | High-purity diamond crystals fabricated by CVD, leveraging their radiation hardness and wide bandgap properties |
| Research | Used as anvil material in high-pressure experiments (e.g., diamond anvil cells) | Natural or high-quality synthetic single-crystal diamonds machined into micron-scale anvil faces to generate ultra-high pressure environments |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Purity | X-ray Diffraction (XRD) | Measures crystalline phase composition by analyzing diffraction patterns from monochromatic X-rays. |
| Particle Size Distribution | Laser Diffraction | Determines particle size distribution based on angular variation in intensity of scattered laser light. |
| Bulk Density | ASTM D1464 | Measures mass per unit volume of loosely packed powder using a standardized funnel and cylinder. |
| Tap Density | ASTM D5965 | Determines density after mechanical tapping to simulate packing under vibration. |
| Metal Impurities (Fe, Ni, Co, Cr) | ICP-OES | Quantifies trace metals by measuring characteristic emission intensities of excited atoms in plasma. |
| Non-metallic Impurities (O, N, S) | Combustion Infrared Detection | Measures oxygen, nitrogen, and sulfur content by high-temperature combustion followed by IR absorption detection. |
| Surface Oxygen Content | X-ray Photoelectron Spectroscopy (XPS) | Quantifies surface oxygen species via measurement of kinetic energy of photoelectrons ejected by X-ray irradiation. |
| Specific Surface Area | BET Nitrogen Adsorption | Calculates surface area from nitrogen gas adsorption isotherm using Brunauer-Emmett-Teller theory. |
| Residual Solvent Content | Gas Chromatography (GC) | Separates and quantifies volatile organic residues based on differential partitioning between mobile and stationary phases. |
| pH of Aqueous Slurry | Potentiometric Titration | Determines surface acidity/basicity by measuring potential change during titration with standard acid/base solution. |
| Thermal Stability | Thermogravimetric Analysis (TGA) | Evaluates weight loss versus temperature to assess decomposition onset and oxidative stability. |
| Moisture Content | Karl Fischer Titration | Quantifies water content by coulometric or volumetric reaction with iodine generated in situ. |
| Test Item | Specification |
|---|---|
| Appearance | White to yellow to green to gray solid |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| Water Content (KF) | <=0.5% |
| Solubility | Insoluble in water and common organic solvents |
| Odor | Odorless |
|
|
|
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.