How to ensure high purity?

Our 99% magnesium chloride powder is made from high-purity industrial-grade magnesium chloride through four core processes: “deep purification and impurity removal + vacuum low-temperature dehydration + ultrafine grinding + multi-stage grading and sieving.” The product is a snow-white ultrafine powder with a particle size precisely controlled between 120-200 mesh and a purity exceeding 99%. It contains virtually no water of crystallization or impurities, making it ideal for high-end precision applications requiring extremely high purity and cleanliness. Compared to ordinary concentrated powder products, it represents a qualitative leap in purity, impurity control, and stability.

Magnesium chloride content ≥99%, chloride and sodium impurities ≤0.3%, water-insoluble matter ≤0.05%, sulfate impurities ≤0.02%, heavy metals (as lead) ≤0.0005%, pH value 5.5～7.0. The powder has excellent flowability and is free of any visible impurities. The bulk density is stable at 1.0–1.2 g/cm³; the dissolved aqueous solution has a light transmittance of ≥99.5%, is clear and residue-free; it also exhibits ultra-low corrosivity and ultra-low toxicity, with extremely low corrosivity to precision metal equipment and higher safety for humans and the environment. It fully meets the requirements of high-end precision manufacturing processes.

Quality Assurance

Xincheng Zengyu Company, as a source factory with experience in producing high-purity chemicals, has established an extremely strict quality control system for 99% magnesium chloride powder, far exceeding that of ordinary products. This ensures that the quality of each batch of products is extremely stable:

1. Raw Material Selection: Only industrial-grade high-purity magnesium chloride with a content of ≥98% is selected as the basic raw material. Each batch of raw materials must undergo 20 index tests, and any unqualified raw materials are directly rejected. This guarantees the purity of the product from the source;

2. Process Control: A fully automated production line is used, and all processes are completed in a Class 10,000 cleanroom. Key process parameters such as deep purification, vacuum dehydration, and ultrafine grinding are monitored in real time to avoid human error and secondary contamination.

3. Comprehensive and Precise Testing: Before leaving the factory, products undergo 25 tests, including magnesium chloride content, impurity content, particle size distribution, heavy metals, and microorganisms. Precise testing methods such as atomic absorption spectrometry and ion chromatography are used. Each batch of products is accompanied by an authoritative and detailed test report, ensuring full traceability.

4. Internationally Recognized Certifications: The product has passed ISO9001-2008 quality management system certification, EU REACH regulation registration, and US FDA food contact material certification.

Packaging and Logistics Guarantee

Packaging Specifications: High-end vacuum aluminum foil bags + outer cartons (100g/500g/1kg/5kg/25kg), 500kg/1000kg ton bags (lined with vacuum aluminum foil bags), with built-in high-efficiency desiccant. Excellent sealing performance effectively prevents moisture absorption and clumping during transportation and storage, ensuring product purity and performance stability. Customized packaging and exclusive labels for small-size samples are available upon request.

Logistics Guarantee: Long-term cooperation with professional high-end chemical logistics companies. Utilizing temperature-controlled, moisture-proof, and leak-proof specialized transport vehicles. Offering customized transportation solutions including full truckloads and containers. Continuously monitoring transportation status and strictly adhering to high-end chemical product transportation standards.

Customization Service Support

1. Customized Sample Service: Providing small-size customized samples ranging from 10g to 1kg to meet customers’ R&D and testing needs. Supports Specialized Testing Based on Customer-Specified Indicators and Provides Detailed Test Reports:**

2. Professional Technical Support:** Equipped with a professional technical team, we provide one-on-one technical support and customized solutions, such as raw material compatibility, process optimization, and dosage calculation, helping customers solve complex production challenges.

3. End-to-End Digital Traceability:** We have established a digital traceability system. Customers can enter the batch number on our official website to query information across the entire chain, including raw material testing, production process, and finished product testing, achieving transparent and controllable quality management.

Xincheng Zengyu Company owns its own factory and is a professional manufacturer and supplier in China. We are committed to providing you with high-quality 99% magnesium chloride powder. We look forward to cooperating with you!