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Micral® 932 is a high surface area alumina trihydrate product with a very precise, ultrafine particle size distribution. Features and benefits include: a lower cost replacement for precipitated ATH; lower soluble soda and free moisture content; improved handling properties; dependable delivery; long-tern availability; exceptional brightness; excellent suspension; an economical halogen-free smoke suppressor/flame retardant.

Functions: Flame Retardant

Chemical Family: Aluminum Compounds, Trihydrates

End Uses: Gelcoat, Powder Coating

Features: Abrasion Resistance, Easy Handling, Stain Resistance

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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
CAS No.
21645-51-2
EC No.
244-492-7
Technologies

Features & Benefits

Product Highlights
  • A lower cost replacement for precipitated ATH 
  • Lower soluble soda and free moisture content 
  • Improved handling properties 
  • Dependable delivery 
  • Long-tern availability 
  • Exceptional brightness 
  • Excellent suspension 
  • An economical halogen-free smoke suppressor/flame retardant.

Applications & Uses

Compatible Substrates & Surfaces
Recommended Application

Applications include wire and cable insulation, injection-molded polyolefins, coatings, adhesives, rubber goods, paper filler and coating, PVC, EPDM, EPR, ABS, XLPE and compression molded Thermosets. A complete range of surface modifications is available to aid processing and enhance physical properties. These include silanes, stearates and wetting agents.

Properties

Appearance
White
Chemical Properties
ValueUnitsTest Method / Conditions
Free Moisture Content(105ºC)0.8%
Al(OH)₃99.6%
Fe₂O₃0.007%
Na₂O (Soluble)0.05%
Na₂O (Total)0.3%
Loss on ignition (1000°C)34.6%
SiO₂0.005%
Typical Properties
ValueUnitsTest Method / Conditions
Bulk Density (Loose)0.35g/cm³
Screen Analysis (through 325 Mesh)100%
Bulk Density (Packed)0.5g/cm³
TAPPI Brightness93.0
Surface Area13m²/g
Specific Gravity2.42g/cm²
Median Particle Diameter2.0microns
Oil Absorption**38.0