High Purity MDH

High purity MDH (magnesium hydroxide), non-toxic, halogen-free, environmentally friendly and low-carbon, solves the pain points of traditional MDH purity deficiency, impurity interference, poor compatibility and other industries. It is specially designed for fields such as electronic semiconductors, new energy, pharmaceutical preparations, high-end flame retardants, precision chemicals, etc. that require strict purity and stability. Provide integrated material solutions for high-end manufacturing enterprises worldwide.

Core technology pillar: Achieving a leap from "pure" to "excellent"

Core strengths

1. Ultra pure quality, ultimate control of impurities

-Purity breakthrough: MDH main content ≥ 99.5% (top-level products can reach 99.9%), key impurity content reaches the international leading level - Fe ₂ O3 ≤ 0.005%, CaO ≤ 0.08%, SiO ₂ ≤ 0.03%, total amount of heavy metals (Pb/Cd/As/Hg) ≤ 1ppm, chloride ions (Cl ⁻), sulfate ions (SO ₄² ⁻) ≤ 10ppm, avoiding the interference of impurities on the performance of end products from the source and adapting to sensitive scenarios such as semiconductors and pharmaceuticals.

-Precision detection guarantee: High end detection equipment such as ICP-MS (Inductively Coupled Plasma Mass Spectrometry), XRD (X-ray Diffraction), and ion chromatography are used to conduct full element analysis of more than 20 indicators for each batch of products. A "raw material process finished product" full chain traceability system is established, and purity data is accurately traceable to meet the quality audit requirements of high-end customers worldwide.

-Low volatile impurities: volatile organic compound (VOC) content ≤ 5ppm, no harmful gas release during high-temperature processing or precision reactions, protecting production equipment and terminal product stability, especially suitable for electronic packaging, high-temperature flame retardant and other scenarios.

2. Precise regulation and performance upgrade

-Narrow distribution particle size design: Customizable D50 particle size range of 0.3-5 μ m, particle size distribution span (D90/D10) ≤ 2.2, excellent dispersibility, can be uniformly integrated into polymer materials, pharmaceutical preparations, coatings and other systems, stable dispersion can be achieved without additional dispersants, and the dispersion efficiency is increased by 40% compared to conventional MDH.

-High activity crystal structure: Through supergravity oriented crystallization technology, regular hexagonal plate-like crystals are formed, with a surface hydroxyl (- OH) active site density of ≥ 1.2 × 10 ¹⁹/m ². The flame retardant efficiency is increased by 30% compared to conventional MDH, and the pollutant adsorption capacity is increased by 25%, which combines functionality and practicality.

-Low moisture absorption and low clumping characteristics: moisture content ≤ 0.3% (top grade ≤ 0.1%), moisture absorption rate ≤ 0.5% (25 ℃, RH85%，24h）， It is not easy to clump during storage and use, ensuring production continuity, especially suitable for large-scale application in automated production lines.

3. Multi domain adaptation, precise empowerment of functions

-High end flame retardant upgrade: precise decomposition temperature of 345 ℃, heat absorption per unit mass of 81.5kJ/mol, smoke density (DS) ≤ 50 during combustion, halogen-free and non-toxic gas release, suitable for semiconductor packaging, new energy battery casings, aerospace interiors and other fields with high requirements for flame retardant rating and environmental protection. It easily passes international certifications such as UL94 V0 (1.0mm) and IEC 60695. Adding 45% to the PP system can achieve UL94 V0 grade, with a mechanical property retention rate of ≥ 85%.

-Pharmaceutical grade mild neutralization: The pH value of the 10% aqueous solution is 9.2-9.8, which is weakly alkaline and has excellent buffering performance. The reaction is gentle when neutralizing acidic substances, and the pH value fluctuates by ≤± 0.3. It is suitable for pharmaceutical acid fast preparations, precision chemical neutralization reactions, and other scenarios to avoid product failure caused by local alkalinity. It meets USP (United States Pharmacopeia) and Ph.Eur. (European Pharmacopoeia) standards.

-Efficient targeted adsorption: The adsorption capacity for heavy metal ions (Pb ² ⁺, Hg ² ⁺, Cr ⁶⁺), fluoride ions (F ⁻), and organic pollutants is ≥ 120mg/g, with a fast adsorption rate (reaching adsorption equilibrium time ≤ 30min) and easy separation after adsorption. It is suitable for high-end environmental protection scenarios such as electronic grade pure water preparation and pharmaceutical intermediate purification.

4. Full scene security adaptation

-Full chain security guarantee: The production process adopts a closed and automated control system to avoid human pollution. The product is non-toxic, odorless, and non irritating. The decomposition products are magnesium oxide (MgO) and water, both of which are environmentally friendly substances. They can be directly used in sensitive scenarios such as pharmaceutical excipients, flame retardants for baby products, and food contact materials.

-Low dust environmental design: Adopting anti caking treatment and low dust packaging technology, the dust flying amount during use is ≤ 5mg/m ³, which complies with OSHA (Occupational Safety and Health Administration) dust emission standards, ensuring the safety of the production environment and the health of operators.

Application field

1. Electronic semiconductors and new energy fields

-Semiconductor packaging: used for semiconductor packaging materials and circuit board substrates, with impurity content ≤ 1ppm, to avoid circuit short circuits caused by ion migration, dielectric strength ≥ 20kV/mm, improve the service life and stability of electronic devices, and comply with the RoHS 2.0 standard in the electronics industry.

-New energy batteries: compatible with lithium battery separators and flame-retardant materials for battery casings, with decomposition temperatures that match the working temperature of the battery (-20 ℃ -60 ℃), no toxic gas release, improving the safety performance of new energy vehicles and energy storage equipment, and meeting the requirements of IEC 62133 international certification.

-5G communication equipment: used for 5G base station enclosures and communication cables to be flame retardant, with stable performance in high temperature and high humidity environments. The flame retardant level reaches UL94 V0 (1.0mm), and the smoke toxicity meets the GB/T 20284 standard, ensuring long-term stable operation of communication equipment.

2. In the fields of medicine and food

-Pharmaceutical excipients: As raw materials for antacids, they are used in pharmaceutical preparations to alleviate excessive stomach acid (such as gastric mucosal protectants and acid fast chewable tablets). They gently neutralize stomach acid without affecting the balance of gut microbiota, and comply with USP (United States Pharmacopeia), Ph.Eur. (European Pharmacopoeia), and Chinese Pharmacopoeia (ChP) standards. They have entered the supply chains of multiple multinational pharmaceutical companies.

-Food additives: used as pH regulators and preservatives in food products such as dairy products, beverages, and baked goods, to regulate product acidity and extend shelf life, in compliance with GB 25579-2010 (China) and FDA 21 CFR Part 184 (USA) food additive standards.

-Health product raw materials: As a magnesium supplement raw material, magnesium content ≥ 41%, easily absorbed by the human body, suitable for calcium tablets, compound nutrients and other health products, meeting the purity and safety requirements of the global health product industry.

3. High end flame retardant and building materials field

-Flame retardant engineering plastics: used for engineering plastics such as PC, PA, PBT, etc., such as automotive electronic components and aerospace interior parts, to achieve efficient flame retardancy and environmental compliance without affecting the material's mechanical properties (tensile strength, impact toughness), meeting industry standards such as ISO 6722 and SAE J1128.

-High end building materials: used for expansion type fireproof coatings and high-end insulation boards. Adding 30% -40% can make the coating have a fire resistance time of ≥ 1.5 hours. The insulation board has a flame retardant rating of B1 or above, low smoke density, and is suitable for public places such as commercial buildings and rail transit. It complies with GB 55037-2022 "General Code for Building Fire Protection".

-Special cables: used for high voltage cables, rail transit cable sheaths and insulation layers, suitable for processing temperatures above 300 ℃, with excellent electrical insulation performance, certified by IEC 60332-1-2 flame retardant, ensuring safe use in extreme environments.

4. Precision Chemicals and Other Fields

-Precision chemical synthesis: As a catalyst carrier and organic synthesis neutralizer, it is used in the synthesis process of pharmaceutical intermediates, high-end coating additives, etc., to avoid impurities interfering with the reaction process, improve product yield and purity, and adapt to the strict requirements of the fine chemical industry.

-Electronic grade pure water preparation: used for ultra pure water purification in the semiconductor and electronics industries, removing trace fluoride and heavy metal ions from water to achieve UPW (Ultra Pure Water) standard, with a resistivity of ≥ 18M Ω· cm, meeting the needs of electronic device cleaning and preparation.

-Cosmetics raw materials: used for skincare products, toothpaste and other products, as a pH regulator and adsorbent, gentle and non irritating, capable of adsorbing skin surface odors and oils, in compliance with the EU EC 1223/2009 cosmetics regulation standards.

Frequently Asked Questions (FAQ)

Q1: What is the core difference between high-purity MDH and ordinary industrial grade MDH?

A1: The core differences are reflected in purity threshold, impurity control, and scenario adaptation: the purity of ordinary industrial grade MDH is mostly 98.0% -99.0%, and the content of impurities (Fe, Ca, heavy metals) is in the ppm to thousand ppm range, which is suitable for ordinary flame retardant, wastewater treatment, and other scenarios; High purity MDH has a purity of ≥ 99.5%, with key impurities (Fe, heavy metals) controlled within 1ppm, and ionic impurities (Cl ⁻, SO ₄² ⁻) ≤ 20ppm. It is designed specifically for high-end scenarios such as electronic semiconductors, pharmaceuticals, and food that are sensitive to purity, and can avoid product failure and performance fluctuations caused by impurities, with better batch stability.

Q2: Are there any special requirements for the storage conditions of high-purity MDH? How long is the quality guarantee period?

A2: Storage must meet the three major conditions of "dryness, ventilation, and coolness": temperature control at 5-30 ℃, relative humidity ≤ 60%, avoid moisture and direct sunlight, and stay away from acidic substances and oxidants; The packaging adopts a double-layer sealing design (outer layer of laminated woven bag+inner layer of PE inner film), effectively isolating moisture and air. The shelf life is 24 months when unopened; It is recommended to use it within one month after opening. If slight clumping occurs, gently crushing it will not affect its performance (purity and dispersibility remain unchanged).

If you are looking for high-purity MDH, 99.5% MDH, electronic grade MDH, pharmaceutical grade MDH, high-end MDH, Taixing will be your best partner and we will provide the lowest price cooperation!