New Type Environment-friendly Inorganic Flame Retardant--Modified Magnesium Hydroxide
1. Brief intro.
 Brand HM series magnesium hydroxide flame retardant uses world advanced compounding and modifying technology to realize the optimization of the performances of inorganic flame retardants.
2. Application
Brand HM series magnesium hydroxide flame retardants are non-toxic, fume-free, fire retardant etc., and the processing temperature can be as high as 340ºC.
Our products have been well received among customers.
3. Chemical property of magnesium hydroxide
Molecular formula: Mg(OH)2, relative molecular weight: 58.32. It belongs to hexagonal system. Pure magnesium hydroxide is white crystal or powder; natural magnesium hydroxide is white, offwhite or light yellow semi-transparent crystalline ore. Density: 2.39g/cm3(25ºC), decomposition temperature: 350ºC, refractive index: 1.561-1.581, hardness(Mohs scale): 2-3, magnesium hydroxide is insoluble in water, it will be decomposed into magnesium oxide and water at 350ºC, and will completely lose water and turn into magnesium oxide at 500ºC.
Technical Index of Modified Magnesium Hydroxide Flame Retardant
Item |
Index |
Notes |
Mg(OH)2 |
>90% |
Effective fire-retarding constituent>96% |
Pb |
<5ppm |
|
Cd |
<5ppm |
|
SiO2 |
<2.5% |
|
Free Water |
<0.3% |
|
Density |
2.39 g/cm3 |
25ºC |
Bulk Density |
0.15-0.40 g/cm3 |
Relevant to particle size |
Activity |
>90% |
|
Oil absorption |
35-45g/100g |
|
Whiteness |
>93% |
|
Particle Size
|
5H series: 6.0-4.0 μm |
Upon clients' requests
|
7H series: 3.0-2.0 μm |
10H series: 1.0-0.5 μm |
|
