Precipitated Magnesium Hydroxide

Precipitation magnesium hydroxide is an excellent multifunctional material produced by Taixing. Compared with traditional magnesium hydroxide, it has higher physical and chemical properties. Its crystal structure is regular, particle size is controllable, purity is excellent, and it has multiple characteristics such as flame retardancy, adsorption, and neutralization. Widely applicable to core fields such as flame retardant materials, environmental governance, and high-end chemicals.

Core strengths

1. Ultimate purity and structural controllability

-Ultra high purity benchmark: Magnesium hydroxide content ≥ 99.0% (high purity level can reach 99.5%), extremely low impurity content (Fe ₂ O3 ≤ 0.01%, CaO ≤ 0.1%, SiO ₂ ≤ 0.05%), avoiding negative impact on end product performance and adapting to high-end precision manufacturing needs.

-Structure: The unique sheet-like crystal morphology enhances flame retardant efficiency and physical reinforcement effect, while the abundant hydroxyl (- OH) groups on the surface enhance the adsorption capacity for pollutants, combining functionality and practicality.

2. Dual advantages of environmental protection and flame retardancy

-Efficient flame retardant mechanism: precise decomposition temperature of 340 ℃ (higher than aluminum hydroxide), the decomposition process absorbs 81.0kJ/mol of heat, while releasing non-toxic water vapor, diluting oxygen and suppressing flame spread, forming a dual flame retardant protection of "cooling+oxygen isolation".

-Zero halogen and low smoke characteristics: During combustion, no toxic or harmful gases such as brominated dioxins and chlorine are produced, and the smoke density is low. It is suitable for fields with extremely high environmental requirements such as electronic appliances and building materials.

3. Environmental Protection and Safety Features

Halogen-free flame retardant, which does not produce toxic smoke during combustion

· Excellent pH buffering capacity (10.0-10.5)

· Excellent biocompatibility, compliant with environmental regulations

Biodegradable with a low environmental footprint

4. Multi compatibility and security guarantee

-Cross system compatibility: Native products can directly adapt to systems such as plastics, rubber, coatings, adhesives, etc. Surface modified types (optional) further enhance compatibility with polymer materials without affecting the mechanical properties of the product (such as tensile strength, toughness).

-Full scenario safety: Belonging to non hazardous chemicals, 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 used in fields with high safety requirements such as food contact materials and pharmaceutical excipients.

Application field

1. Flame retardant materials field (market share exceeds 60%)

-Plastic and Rubber Industry: Suitable for PP, PE, EVA, ABS, PVC and other plastics and various rubber products, such as wire and cable sheaths, automotive interior parts, home appliance shells, conveyor belts, film products, etc., helping products pass international flame retardant certifications such as UL94 V0 and IEC 60335, and meet high-temperature processing needs.

-In the field of building materials, it is added to fireproof coatings, insulation boards, wallpapers, fireproof door and window filling materials, etc., to slow down the spread of flames, reduce smoke toxicity, and adapt to the fire safety requirements of commercial buildings, residential buildings, rail transit and other public places.

-In the field of electronic appliances: used for circuit boards, battery casings, power adapters, LED lamp casings, etc., while ensuring flame retardant performance, it avoids the corrosion of electronic components by toxic gases and complies with environmental standards in the electronic appliance industry.

2. High end chemical and other fields

-Chemical raw materials: used for the production of magnesium oxide, magnesium sulfate, magnesium salt series products, as well as as as rubber vulcanization accelerators, coating anti settling agents, paper sizing agents, etc., to enhance product performance stability.

-In the agricultural field, as a soil amendment, it regulates the pH value of acidic soil, supplements magnesium elements, promotes crop growth, and improves the yield and quality of agricultural products.

3. Advanced material manufacturing

·Magnesium based ceramic precursor: preparation of high-purity magnesium oxide and special ceramics

·Catalyst carrier: high specific surface area provides excellent loading performance

·Battery material: Lithium ion battery flame retardant electrolyte additive

Common problems with precipitated magnesium hydroxide (FAQ)

Q1: What is the core difference between precipitated magnesium hydroxide and natural brucite?

A1: The core differences lie in purity, structural controllability, and performance stability. Natural brucite has high impurity content (SiO₂, CaO, etc.), uneven particle size distribution, and significant fluctuations in flame retardancy, adsorption, and other properties; Through chemical synthesis process, precipitated magnesium hydroxide can accurately control purity (≥ 98.0%), particle size (0.5-10 μ m) and crystal structure, with stable and consistent performance, meeting the strict requirements of industrial scale production, and environmental indicators are easier to meet.

Q2: What are the advantages of the flame retardant efficiency of the product compared to aluminum hydroxide?

A2: The flame retardant efficiency of precipitated magnesium hydroxide is better: ① The decomposition temperature is higher (340 ℃ vs 200 ℃), suitable for high-temperature processing plastics such as PP and PE (processing temperature is usually 200-280 ℃), to avoid premature decomposition during the processing process that may cause flame retardant failure; ② The heat absorption per unit mass is greater (81.0 kJ/mol vs 44.2 kJ/mol), and the cooling effect is more significant; ③ The lower smoke density and halogen-free characteristics are more in line with global environmental trends, especially suitable for the electronic and construction fields that require high smoke toxicity.

Q3: How to control the dosage of the product in wastewater treatment? Will it cause the pH value to exceed the standard?

A3: The dosage should be calculated based on the acidity (pH value) and pollutant concentration of the wastewater. It is usually recommended to add according to the ratio of "theoretical dosage x 1.1-1.3" (specific wastewater samples can be provided, and we will provide an accurate calculation plan); The product is mild alkaline (10% slurry pH 9.0-10.0), with a gentle neutralization reaction that does not cause a sudden increase in pH value. With online pH monitoring equipment, the effluent pH value can be accurately controlled within the standard range of 6-9, without worrying about exceeding the standard.

If you are looking for precipitated magnesium hydroxide, flue gas desulfurization magnesium hydroxide, Mg (OH) ₂, industrial grade magnesium hydroxide, Taixing will be your best partner and we will provide the lowest price cooperation!