Explore our diverse chemical precursors, industrial gases, and performance metal powders tailored for global engineering applications.
Yanxatech System Industries Limited (hereinafter referred to as YANXA) is one of the growing suppliers in the field of specialty materials in China.
Starting from a fledgling small business unit in 2008, YANXA has been driven by a passion for developing a broad international market in areas relating to chemical and mechanical industries. Thanks to our team's enduring, persistent work and our business partners' long-lasting support, YANXA has steadily and vigorously grown into an enterprise of excellence, delivering high-performance products and services relating to specialty materials.
Cooperating with leading manufacturers and renowned research institutes in the field of specialty chemicals in China, YANXA is capable of supplying: 1) Liquid rubber; 2) Nitrate chemicals; 3) Metal powder & metal alloyed powders.
Quality, safety, and efficiency prevail over all other values in our business operations. We care deeply about what our customers need—both in terms of standard production materials and unique, highly customized specifications for newly developed applications.
We adhere strictly to technical guidelines, engineering standards, and target properties to ensure deliveries match design goals in perfect conformity.
Furthermore, we recognize that the chemical business involves safety challenges unique to our industry. We execute all chemical management, warehousing, and shipping activities safely to protect human health and preserve the global environment.
An authoritative guide to AlN powder synthesis, processing parameters, and structural ceramic applications for procurement managers and design engineers.
Modern microelectronics, electric vehicle (EV) traction inverters, and high-frequency communication modules demand rapid heat dissipation to maintain silicon and wide-bandgap (SiC, GaN) semiconductor junction temperatures. Traditional ceramic materials like Alumina ($Al_2O_3$) are no longer sufficient, displaying thermal conductivity limits of ~30 W/m·K.
Aluminum Nitride (AlN) represents a breakthrough. With a theoretical thermal conductivity limit of 320 W/m·K (and commercial ceramic components achieving 170–230 W/m·K), AlN matches the CTE (Coefficient of Thermal Expansion) of Silicon ($3.5 \times 10^{-6}/K$ to $4.5 \times 10^{-6}/K$), minimizing thermal stress under cyclic operational conditions.
Crucial to its performance is lattice purity. The thermal transport in AlN is governed by phonon vibration. Any presence of oxygen impurities within the AlN crystal structure causes aluminum vacancies ($V_{Al}'''$), which scatter phonons, severely decreasing thermal conductivity. Therefore, control of oxygen content ($O_{wt} < 0.8\%$) is the primary benchmark for premium semiconductor-grade powders.
Synthesized by reducing $Al_2O_3$ with Carbon in a Nitrogen environment at high temperatures. Produces highly uniform, spherical particles with low oxygen impurity, ideal for high-end ceramic substrates and co-fired metallized layers (HTCC/LTCC).
Synthesized through the direct exothermic reaction of aluminum powder with nitrogen gas. It is cost-efficient and typically yields larger particle distributions, making it a popular option for thermal interface materials (TIMs) and epoxy casting fillers.
Critical metric for sintering. Premium AlN powders keep total oxygen levels below 0.8%, which minimizes structural lattice defects and yields high thermal conductivity values post-densification.
Global buyers are shifts toward specialized material suppliers in China to balance raw-material costs with high-purity specifications. When acquiring industrial-scale batches, procurement teams must evaluate key factors beyond basic unit cost:
By working directly with Chinese specialists, purchasers can access highly customized powder grades tailored specifically to high-performance heat sinks, DBC (Direct Bonded Copper) substrates, and advanced aerospace packaging.
Detailed physical and chemical parameters for our high-demand specialty powders, polymers, and chemical intermediates.
Product Characteristics: Formaldehyde is a colorless liquid, easily polymerized, and readily soluble in water, alcohol, and ether. It is rapidly oxidized to formic acid in air, acting as a strong reducing agent. Its boiling point is -19°C, freezing point -118°C, and relative density to air is 1.067. Commercially, it is supplied in liquid form as formalin, a 37-50% formaldehyde solution with a small amount of methanol added as a polymerization inhibitor. The solution is milky white and has a foul odor. Formalin readily vaporizes, releasing formaldehyde gas. Its boiling point is 96°C, relative density is 0.815/-20°C, and flash point is 55°C.
Product Overview: Hexamethylenetetramine, also known as hexamine or HMTA, is a white crystalline powder produced by the condensation reaction of formaldehyde and ammonia. It is a versatile organic chemical intermediate widely used in industrial manufacturing, pharmaceutical synthesis, rubber processing, and analytical chemistry.
| Parameter | Value / Identification |
|---|---|
| CAS No. | 100-97-0 |
| Molecular Formula | C₆H₁₂N₄ |
| Molecular Weight | 140.19 g/mol |
Product Features: A white powdery solid with a flammable odor of formaldehyde. It is a linear polymer of formaldehyde with no fixed melting point.
| Item Specifications | Specification A | Specification B |
|---|---|---|
| Appearance | White powder/solid | White powder/solid |
| Content | ≥96% | ≥92% |
| Solubility | ≤40 minutes | ≤40 minutes |
| Formic acid | ≤0.05% | ≤0.05% |
| PH | 5-7 | 5-7 |
Manufactured via high-pressure inert gas atomization to guarantee near-perfect sphericity, minimal surface oxides, and highly consistent particle distribution profiles. Primarily developed for advanced metallurgical parts, aerospace components, and pyrotechnic industrial chemistry.
Ensuring international safety compliance, hazard packaging, and engineering innovation for high-reliability industries.
Chemical and specialty powder transport presents unique regulatory challenges. YANXA ensures all export documentation, including Safety Data Sheets (SDS), Certificates of Analysis (CoA), and Dangerous Goods certificates, comply with regional customs directives (REACH, RoHS, GHS standards).
Our moisture-sensitive powders are packaged under protective atmospheres (argon or nitrogen vacuum sealing) to prevent hydrolysis during ocean freight transit, securing physical integrity upon arrival.
As an ISO 9001:2008 certified supplier network, our partner factories carry out strict quality verification checks at every process step. We utilize Laser Diffraction Particle Size Analyzers (like Malvern Mastersizer) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to keep metal impurities below threshold standards.
We work closely with clients to develop custom sintering profiles and support early-stage product trials.
Answers to commercial, logistical, and technical queries from our global sourcing partners.
Select premium specialty rubbers, high purity gases, and strategic chemical formulations from our supply line.
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