High Purity γ-Alumina Fine Powder

Molecular Structure

Molecular formula: AL₂O₃ Molecular weight: 101.96 CAS No.： 1344-28-1 EINECS No.:215-691-6 MDL：MFCD00003424

Technical Index:

Item Value

Model UPC818F-100 UPC818F-180

Appearance White Powder White Powder

Crystal γ γ

Purity % 99.999

D₅₀,μm,≤ 3.0-5.0 4.0-6.0

apparent density 0.10~0.28 0.08.0~0.25

tap density 0.20~0.35 0.18~0.35

BET 100±20 180±20

Si,ppm ≤ 50 50

Fe,ppm ≤ 5 5

Na,ppm ≤ 10 10

Ca,≤ppm 5 5

K,≤ppm 5 5

UPC-818F Transmission Electron Microscope TEM Test Results：

Properties
Gamma-alumina is odorless, tasteless white powder.For unstable crystal, under 1000 ℃ alumina into theta-alumina, 1180 ℃ transformed into crystalline type stable alpha-alumina, primary particle size is 6~10nm,or 20-50nm is transparent or translucent nanoparticles.BET for 100~400 m2/g, specific surface area is big, there is a lot of surface chemical activity.

Usage
Packing, catalyst carrier, desiccant, adsorbent, stabilizer of safety air bag, gas chromatographic column, purifying agent, tube wall coating, synthetic gems, etc.

Packing
Packed in composite paper bag, lined with plastic film bag, net weight 10kg/bag.

Storage
Seal stored in a cool, dry, well ventilated place, avoid direct sunlight

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