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Magnesium Hydroxide


3N® MgH are magnesium hydroxides treated with stearic acid.  They are used as non-halogen flame retardants and smoke suppressants in cables and wires, rubbers, plastics, fibers and coating materials nad thermoplastic olefin roofing materials.

Magnesium Hydroxide has excellent thermal stability of up to 340ˇăC, which enables its use where aluminum hydroxide is not sufficiently stable.  Magnesium hydroxide is environmentally friendly since no toxic or corrosive gases are generated during its decomposition process.

3N® MgH are grinded from high purity mineral ore and has a big cost advantage to precipitated magnesium hydroxide. 

 Typical properties:

             Grade   MgH-2000T   MgH-2500T
             Appearance   White Powder   White Powder
             Mg(OH)2   94% min.   94% min.
             MgO   64% min.   64% min.
             Ca   0.6% max.   0.6% max.
             Cl   0.3% max.   0.3% max.
             Loss on Ignition(1200ˇăC)   30%   30%
             Specific Gravity   2.36   2.36
             Average Particle Size   5 µm max   4 µm max.
             Moisture   0.5% max.   0.5% max.

Packing: 25 kg bags, 40 bags per pallet, or 1000 kg super sacks.


Links for Flame Retardants:

    Antimony Trioxide, Brominated Flame Retardants, Sodium Antimonate, Aluminum Hydroxide

    Magnesium Hydroxide, Zinc Borate, Zinc Stannate, Zinc Hydroxystannate

    Ammonium Polyphosphate, Isopropylated Triaryl Phosphates

Links for related products:

   Antioxidants, Colors, Titanium Dioxide, Optical Brighteners

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Last modified: 12/17/08