Magnesium Hydroxide, MDH-1.0 μm

Catalog	ACM1309428-8
CAS	1309-42-8
Structure
Description	Magnesium hydroxide has a good fire retardant effect, and is an ideal non-toxic, smoke-free, non-polluting, high-temperature flame retardant. It can also play the role of filler to enhance the mechanical properties of materials. When burning, it decomposes and releases crystalline water to absorb a large amount of heat, while isolating the air on the surface of the burning material. The generated high-temperature resistant activated magnesium oxide can attach to the surface of the burning material to prevent burning. The decomposition doesn’t generate corrosive or toxic gases. It is alkaline and can absorb and neutralize the acidic gases released when burning, such as carbon dioxide, sulfur dioxide, and nitrogen oxides. Activated magnesium oxide can absorb harmful gases, smoke, and molten residues that are incompletely burning.
Synonyms	Magnesium Hydroxide,Brucite Powder
Molecular Formula	Mg(OH)2
Melting Point	332°C (630°F)
Density	2.3446 g/cm³
Solubility	Insoluble in water and alcohol, soluble in dilute acid and ammonium solution
Appearance	White powder
Application	It has three major functions – flame retardant, smoke suppression, and filling, and can be used as flame retardant filler for plastics, rubber, cables, etc.
Bulk Density	0.96
Content	Fe Content, max. 0.3%
Decomposition Temperature	350 °C
Hardness	1.56-1.58 (Mohs hardness)
Loss On Ignition	25% @750°C
Moisture Content	max 0.5%
Oil Absorption	35 ml/100g
Particle Size	max. 1.0 μm D50 max. 2.5 μm D97
pH	10-12
RefractiveIndex	1.559
Specific Gravity	2.36 g/cm³
Whiteness	0.96

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