Spherical alumina

Short Description:

Molecular formula: AL2O3
CAS NO.:1344-28-1
EINECS NO.:215-691-6
Molecular Weight: 102
Melting point: 2050 ℃
Boiling point: 2980ºC
Specific gravity: AL2O3,α type 2.5-3.95g / cm3
Form:α type, y-type, La- type
Features:white odorless powder
high purity, the process can be controlled according to the particle size, the particle size distribution uniform

Product Detail


Product Tags

c0f85347 Applicable

it is suitable for thermal conductive silica gel packing, resin packing, electronic packaging and other industries

c0f85347 Features

good crystal morphology, especially QW series spherical alumina SEM shows absolute spherical shape, small specific surface area, uniform particle size, high specific gravity, narrow particle size distribution, high filling quantity, good fluidity, high insulation performance, high filling, high heat conductivity.


Specifications for QW Series Spherical Alumina

Product Model QW05 QW10 QW20 QW30 QW45 QW70
AL₂O₃(%) ≥99.5 ≥99.5 ≥99.5 ≥99.5 ≥99.5 ≥99.5


SiO₂ ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≤0.05
  Fe₂O₃ ≤0.03 ≤0.03 ≤0.03 ≤0.03 ≤0.03 ≤0.03
  Na₂O ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≤0.05
  Loss in calcination ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≤0.05
Median granularity D50(μm) 5±1 10±1 23±2 30±2 45±2 70±2
Appearance   White powder,no agglomeration,no foreign body.
Distribution of partial size   It can be adjusted appropriately according to your needs.

  • Previous:
  • Next:

  • 详情页 (3)详情页 (6)详情页 (4)详情页 (5)详情页 (1)详情页 (2)

    Write your message here and send it to us