Magnesium Hydroxide – Mg(OH)₂, CAS No. 1309-42-8, is a non-toxic, halogen-free flame retardant widely used in polymer applications. Upon heating, it decomposes endothermically, releasing water vapor that cools the material and dilutes combustible gases, thereby suppressing fire and smoke.
MagShield® (Martin Marietta)
Magnifin® H-5, H-10, H-10-IV (Huber Engineered Materials)
MagFlam® MDH-3 (St. Louis Group)
XK-10000/92 (KMT Industrial)
Kisuma 5, Kisuma 5A-N (Kyowa Chemical)
Maglux, Magstar, Marinco H 1241
Magnesium Dihydroxide (MDH)
**All tradenames owned by respective brands. No association claimed.
| Property | Specification |
|---|---|
| Chemical Formula | Mg(OH)₂ |
| CAS Number | 1309-42-8 |
| Molecular Weight | 58.32 g/mol |
| Appearance | White powder |
| Decomposition Temperature | |
| Solubility in Water | 0.0009 g/100 mL at 18°C |
| pH (10% suspension) | 9.5–10.5 |
| Specific Gravity | ~2.36 g/cm³ |
**confirm specifications before placing order
Halogen-free and environmentally friendly
Acts as both flame retardant and smoke suppressant
Non-toxic and safe for various applications
Thermally stable, suitable for high-temperature processing
Compatible with various polymers
Wire and cable insulation
Thermoplastics and thermosets
Rubber products
Coatings and adhesives
Construction materials
Typically ranges from 30% to 60% by weight, depending on the polymer matrix and desired flame retardancy level.
Disclaimer: The optimal dosage may vary based on specific applications and formulations. Users should conduct appropriate testing to determine the suitable concentration for their needs.
1 kg
10 kg
25 kg
Transportation and courier services available.
Store in a cool, dry place away from moisture and incompatible substances.
MagShield® Magnesium Hydroxide – Magnesia Specialties
Magnifin® H-5 – Huber Engineered Materials
Magnesium Hydroxide – ChemicalBook
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