Explore our diverse chemical range from highly purified industrial gases to performance rubber derivatives and liquid compounds.
A technical treatise on the chemical efficacy, production landscapes, and supply architecture of Aluminium Sulphate in China.
Aluminium Sulphate (chemical formula: Al2(SO4)3) is a highly soluble chemical compound widely used as a coagulant in drinking water treatment, industrial waste processing, and paper manufacturing. Often referred to as "alum" or "papermaker's alum", it appears as a white crystalline powder. The compound functions primarily by neutralizing negative charges on suspended particles in solution, promoting the agglomeration of fine particles into larger, easily removable flocs. This process is critical in water purification to eliminate turbidity, suspended organic matter, and pathogenic microorganisms.
Information Gain Insight: Not all Aluminium Sulphate is created equal. Commercial applications differentiate strictly between Iron-Free (Fe < 0.005%) and Low-Iron (Fe < 0.5%) grades. Iron-free alum is mandatory in premium paper sizing and drinking water purification where color staining is unacceptable. Low-iron variants are extensively selected for industrial wastewater treatment due to their cost efficiency.
| Specification Parameter | Iron-Free Powder Grade | Low-Iron Powder Grade |
|---|---|---|
| Al2O3 (Alumina Content) | ≥ 17.00% | ≥ 15.80% |
| Fe (Iron Content) | ≤ 0.005% | ≤ 0.50% |
| Water Insoluble Matter | ≤ 0.15% | ≤ 0.20% |
| pH Value (1% aqueous solution) | ≥ 3.0 | ≥ 3.0 |
| Heavy Metals (as Pb) | ≤ 0.002% | ≤ 0.002% |
China remains the world's most competitive and integrated manufacturer of Aluminium Sulphate. This dominance is supported by domestic reserves of high-grade bauxite (the primary raw material for alumina extraction) and integrated production lines for sulphuric acid.
By operating at the intersection of resource abundance and process automation, Chinese factories achieve economies of scale unmatched by regional suppliers. Raw material integration significantly insulates buyers from global price volatility. Additionally, state-of-the-art facilities in coastal and key industrial belts ensure convenient logistics, enabling bulk transport from deep-water ports like Qingdao, Tianjin, and Shanghai directly to international hubs.
For global procurement departments, regulatory compliance and safety profiles are non-negotiable. Leading Chinese manufacturers, such as YANXA, conform strictly to international frameworks:
Furthermore, specialized hazard packaging and anti-caking additives are incorporated to withstand changes in temperature and humidity during long maritime transits.
Analyzing market shifts and high-impact deployment environments of high-purity alum.
Primary coagulant of choice for municipal water treatment plants. Efficiently precipitates suspended organic matter, metals, and phosphates, ensuring compliance with strict global drinking water standards.
Facilitates rosin sizing, enhancing water resistance, ink retention, and tensile strength of the paper. Alum adjusts pulp pH and optimizes retention of fillers and fibers.
Used to adjust alkaline soils by hydrolyzing and generating dilute sulfuric acid. In the construction industry, it serves as an effective concrete hardening accelerator and waterproofing agent.
SEO User Intent Mining: Modern procurement searches have shifted from simple "cheap alum" terms to long-tail inquiries focused on safety, compliance, and custom sizing. Buyers seek suppliers with verified REACH documentation, custom granulometry (powder vs. granules), and robust bulk supply chain security.
Detailed profiles of our core chemical products manufactured and sourced by Yanxatech System Industries Limited.
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℃, freezing point -118℃, 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℃, relative density is 0.815/-20℃, and flash point is 55℃.
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.
• 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.
• Content: ≥96% / ≥92%
• Solubility: ≤40 minutes
• Formic Acid: ≤0.05%
• pH: 5-7
Highly spherical metal alloy powder optimized for pyrotechnics, chemical reactions, and specialized military and civil applications. Manufactured with strict grain-size distribution limits and low active oxygen degradation rates.
Understanding the foundation of Yanxatech System Industries Limited.
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 is driven with the passion of developing a broad international market in the area relating to the chemical and mechanical industries. Thanks to our team’s enduring and persistent work and our business partners’ long-lasting support, YANXA has steadily and vigorously grown into a company with excellence in delivering products and services relating to specialty chemicals.
Cooperating with leading manufacturers and renowned research institutes in the field of specialty chemicals in China, YANXA is capable of supplying:
Our Core Philosophy: Quality, safety, and efficiency prevail over all other values in our business. We care about what our customers need for general product runs as well as their unique and specific requirements for newly developed applications. We adhere strictly to technical specifications and make deliveries in near-perfect conformity. Chemical supply chains demand high safety standards. We manage all chemical logistics in a safe, compliant, and environmentally responsible manner to protect human health and ecosystems.
Answers to technical, commercial, and logistical inquiries regarding our chemical and material supply operations.
A complete selection of advanced metal powders, high-purity gases, and specialty polymers for specialized sectors.
Yanxatech
