Magnesium hydroxide flame retardant

Brucite Mineral Properties:
Brucite [Molecular formula: Mg(OH)2] is a natural mineral with high magnesium content and rich in crystalline water. When heated to 340°C, it begins to decompose into MgO and produces a large amount of water vapor. [Crystal Chemistry] Theoretical composition: MgO 69.12%, H2O 30.88%;
Often contains impurities such as Fe, Mn, Zn, and Ni in isomorphous forms. It has a layered structure, trigonal crystal system, with single crystals appearing as thick plates; commonly found as flaky aggregates;
Fibrous aggregates are known as fibrous brucite. Brucite has a Mohs hardness of 2.5, a density of 2.3-2.6, and a whiteness of over 90%.
Brucite Applications:
Production of magnesium hydroxide flame retardant; Manufacturing asbestos-free insulation materials; Refractory materials for protective layers in nuclear reactors of nuclear power plants; Coating for magnesium welding electrodes; Thermal insulation materials; Inhibitor for fuel combustion corrosion; Filler in the paper industry; Production of light-burned magnesia and dead-burned magnesia; Neutralizing agent for acidic wastewater, adsorption of heavy metals, and flue gas desulfurization;
Grade YP-3500 YP-3000 YP-2500 YP-1500 YP-1250 YP-1000
I. Physical Indicators
Particle Size (μm) D97: μm 7.3 11.5 16.5 16.8 24.8 29.5
D90: μm 5.2 8.1 10.8 11.7 17.1 20.1
D50: μm 2.2 3.0 3.5 4.0 5.0 5.5
D10: μm 0.8 0.9 0.9 1.0 1.1 1.2
Specific Surface Area: (M2/KG) 1400 1100 1000 950 800 750
Density: (G/CM3) 2.3—2.4
Mohs Hardness 2—3
Whiteness: (R45T%) ≥90
Oil Absorption: (ML/100G) ≤55
PH Value 9—10
Refractive Index: (%) 1.56—1.58
Volume Resistivity (Ω.CM) 108—1010
Vertical Burning Performance UL-94V0
Loss on Ignition: 28—30
Decomposition Temperature (°C) 340
II. Chemical Indicators (WB/%)
Molecular Weight 58.3
Mg(OH)2 ≥94
MgO ≥65
Fe2O3 ≤0.5
SiO2 ≤2.2
Al2O3 ≤0.15
CaO ≤1.0
P 0.02—0.05
L.O.I 30
A.L.R ≤2.3
Moisture Content ≤0.3
Packing: 25KG, 50KG, 1MT plastic woven bag or negotiable