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Specialty Compounds RTP Company

Nabaltec APYRAL® 30X Al(OH)3
Categories: Ceramic; Oxide; Aluminum Oxide; Other Engineering Material; Additive/Filler for Polymer

Material Notes: APYRAL ® from Nabaltec is an environmentally friendly halogen free product which is used as a flame retardant filler in a wide variety of rubber and polymeric materials. During thermal decomposition APYRAL ® does not generate toxic or corrosive gases. In addition, there is a distinct reduction in smoke density. APYRAL ® is effective in the crucial phase of the burning process before the outbreak of a fully developed fire.

APYRAL ® can be used as a flame retardant filler in

  • Thermosets
  • Elastomers
  • Thermoplastics
  • Cable Compounds
  • Technical Rubber Compounds
  • Pressed and cast Plastic Parts
  • Thermal Insulation Foams
  • Glass-fiber reinforced plastics

Key Words: Aluminum Hydroxide, Al(OH)3
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Physical PropertiesMetricEnglishComments
Bulk Density 0.500 g/cc0.0181 lb/in³
Density 2.40 g/cc0.0867 lb/in³
Brightness 94 %
@Wavelength 457 nm
94 %
@Wavelength 457 nm
Whiteness; Elrepho
Oil Absorption 13 %13 %ml/100 g
Moisture Absorption at Equilibrium 0.10 %0.10 %
Loss On Ignition 34.6 %
@Temperature 105 - 1000 °C
34.6 %
@Temperature 221 - 1830 °F
Particle Size 7.0 µm7.0 µmMedian Grain Diameter
Specific Surface Area 1.5 m²/g1.5 m²/gBET
 
Mechanical PropertiesMetricEnglishComments
Hardness, Mohs 33
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 20000 ohm-cm20000 ohm-cm
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.581.58
 
Component Elements PropertiesMetricEnglishComments
Fe2O3 0.010 %0.010 %
Na2O 0.20 %0.20 %
SiO2 0.010 %0.010 %
 
Descriptive Properties
Al(OH)3 wt %99.7
Crystal StructureGibbsite
Sieve Analysis (%)10> 45 µm

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