Brucite INFORMATION

Brucite is a naturally occurring hydrated magnesium oxide. A primary use is in anti-fire. At about 300C Brucite will lose its water of hydration, absorb energy and provide its anti-fire protection.

 

Grades of Brucite

Brucite Natural

Brucite Natural INFORMATION

Brucite is a naturally occurring form of magnesium hydroxide. Our product is selectively mined and beneficiated by heavy media separation. It is ground to a fine powder suitable for polymer compounding. The major use for Brucite is as a fire retardant. Starting at about 300C the Brucite decomposes (Mg(OH)2 into Mg0 plus H20) absorbing heat and releasing water. This reaction is the basis of the fire retardant and smoke suppression property.

Packing: 50 lb paper bags
Origin: USA

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CHEMICAL ANALYSIS
LOI As Sold, 1000ºC (H20) 33.0%
After Loss on Ignition:  
Mg0 91.0%
Ca0 3.8%
Si02 2.5%
R203 1.7%
   
Other Insolubles 1.0%
PARTICLE SIZE:  
Appearance Off-White Powder
Brucite Synthetic

Brucite Synthetic INFORMATION

Brucite Grade S is a synthetic form of magnesium hydroxide. Our product is precipitated from sea water, beneficiated to remove impurities, and ground to 325 mesh. It is ground to a fine powder suitable for polymer compounding. The major use for Brucite is as a fire retardant. Starting at about 300C the Brucite decomposes (Mg(OH)2 into Mg0 plus H20) absorbing heat and releasing water. This reaction is the basis of the fire retardant and smoke suppression property.

Packing: 50 lb paper bags. or bulk super sacks
Origin: USA

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CHEMICAL ANALYSIS:
As Sold:  
LOI, 1000ºC (H20) 33.0%
   
After Loss on Ignition:  
Mg0 98.40%
Ca0 0.65%
Si02 0.45%
Fe203 0.12%
Al203 0.13%
B203 0.25%
PHYSICAL PROPERTIES:
Appearance White Powder
Loose Density 30 lb/cu ft
Tapped Density 50 lb/cu ft
Particle Size:  
+100 mesh typically0.0% 1% max
-325 mesh typically 98.0%96% max

Need More Information?

If you are looking for a physical or chemical analysis of this mineral, then please feel free to request a complete analysis from us.
We are happy to send you any additional information you might need.

 

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