Grade | Mg(OH)2 (%min)
| (%min) | SiO2 (%max) | CaO (%max) | Fe2O3 (%max) | Al2O3 (%max) | Size |
AAA | 92.5 | 64 | 3.5 | 2.5 | 0.5 | 0.5 | 80mesh 120mesh 200mesh 325mesh or lump |
AA | 89.5 | 62 | 4.5 | 3.5 | 0.5 | 1.0 | |
A | 86.5 | 60 | 8 | 5 | 0.8 | 1.0 | |
B | 83.5 | 58 | 10 | 5 | 1.2 | 1.0 | |
C | 72 | 50 | 12 | 8 | 1.2 | 1.0 |
Brucite appears as a white to grayish crystalline powder with low solubility in water and high thermal decomposition temperature. It is primarily used as a flame retardant, pH regulator, and neutralizing agent in various industries.
Key Properties Table:
| Property | Value | Unit |
|---|---|---|
| Chemical Formula | Mg(OH)₂ | - |
| Molecular Weight | 58.32 | g/mol |
| Appearance | White crystalline powder | - |
| Solubility | 0.00064 | g/100 mL at 20°C |
| pH (saturated solution) | 10.5–11 | - |
| Density | 2.39 | g/cm³ |
| Decomposition Temp | ~350°C | °C |
Applications:
Flame retardants in plastics, coatings, and rubber.
Wastewater and flue gas treatment as neutralizing agent.
Precursor in magnesium-based chemicals.
Quality control is critical to ensure Brucite performs effectively in industrial applications. Each batch undergoes rigorous testing to meet international standards.
Purity: ≥95% Mg(OH)₂
Loss on Ignition (LOI): 30–32%
Moisture Content: ≤1%
Heavy Metals: Pb, Cd, Hg < permissible limits
Particle Size Distribution: 5–50 μm
| Parameter | Test Method | Result | Standard |
|---|---|---|---|
| Purity | Titration | 96.2% | ≥95% |
| Mg Content | Gravimetric | 59.8% | 59–61% |
| LOI | Thermogravimetric | 31% | 30–32% |
| Moisture | Loss on Drying | 0.7% | ≤1% |
| Pb | AAS | <0.5 ppm | ≤1 ppm |
| Particle Size | Laser Diffraction | 10–45 μm | 5–50 μm |
Certified ISO 9001 quality management ensures consistent batch-to-batch performance.
Brucite addresses several challenges across different sectors:
Acts as a non-toxic, halogen-free flame retardant in plastics, coatings, and rubber.
Provides thermal stability and smoke suppression.
Can be combined with synergists for enhanced performance.
Neutralizes acidic wastewater streams, stabilizing pH levels.
Used in flue gas desulfurization to remove sulfur oxides.
Reduces environmental impact compared to synthetic alternatives.
Serves as a precursor for magnesium salts and other specialty chemicals.
Provides a stable and pure feedstock for industrial processes.
Industrial Solution Table:
| Application | Solution | Benefit |
|---|---|---|
| Flame Retardant | Add 30–60% Brucite to polymer | Non-toxic, halogen-free fire retardancy |
| Wastewater Treatment | Mix with acidic effluent | Neutralizes pH, precipitates heavy metals |
| Chemical Production | High-purity Brucite feed | Ensures consistent product quality |
To maintain optimal performance, Brucite-based systems require structured upgrade and maintenance planning:
Keep Brucite in a dry, ventilated area to prevent moisture absorption.
Avoid contact with strong acids and oxidizing agents.
Use airtight containers to maintain purity.
Evaluate current industrial processes for Brucite utilization.
Upgrade dosing and mixing systems for uniform distribution.
Integrate automated pH monitoring in wastewater or flue gas systems.
Monthly: Check storage conditions and container seals.
Quarterly: Test particle size distribution and purity.
Annually: Perform full system audit and evaluate process efficiency.
Upgrade and Maintenance Table:
| Task | Frequency | Notes |
|---|---|---|
| Storage inspection | Monthly | Ensure dryness and airtight containers |
| Purity & particle testing | Quarterly | Maintain performance standards |
| System audit | Annually | Evaluate process efficiency and plan upgrades |
| Equipment cleaning | As needed | Prevent buildup and blockages |
Industrial users report high satisfaction with Brucite due to:
“Brucite provides excellent thermal stability without producing toxic smoke.”
“Integration into PVC and rubber composites improved safety ratings significantly.”
“Neutralizing acidic wastewater was more efficient and cost-effective compared to alternatives.”
“Consistent particle size helped achieve uniform flue gas treatment performance.”
“Brucite’s high purity and low heavy metal content ensure reliable chemical synthesis.”
“Customer support and technical guidance helped optimize process integration.”
User Feedback Table:
| Application | Feedback | Benefit Highlight |
|---|---|---|
| Flame Retardant | Safe, efficient, non-toxic | Improved fire safety rating |
| Wastewater Treatment | Efficient, cost-effective | Reliable pH neutralization |
| Chemical Production | High purity, consistent | Optimized chemical synthesis |
High Thermal Stability: Effective as a flame retardant up to 350°C.
Non-Toxic: Halogen-free, environmentally friendly.
Versatile Applications: Flame retardancy, wastewater treatment, chemical precursor.
Consistent Quality: ISO-certified production ensures low heavy metals and uniform particle size.
Cost-Effective: Reduces chemical usage and environmental treatment costs.
Brucite (Natural Magnesium Hydroxide) is a highly reliable industrial mineral with broad applications in flame retardancy, environmental protection, and chemical manufacturing. By following quality inspection protocols, industrial solutions, upgrade and maintenance plans, and considering user feedback, companies can achieve superior performance, safety, and cost efficiency.
Selecting a certified supplier ensures consistent product quality, technical support, and adherence to international standards, making Brucite a trusted choice for global B2B procurement and industrial use.
Address：
Gaozhuang of Nanlou Economic Development District ,Yingkou, Liaoning, China
Tel：
+86 0417-8106588
+86 15841748506
Fax：+86 0417-8106488
E-mail：liumeng@ykmmc.com.cn
Copyright © 2025 Yingkou Magnesite Mining Co. , Ltd
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