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WHA-410

WHA-410 is also a fine pore aluminum oxide,white powder.This product is used as gel of catalyst carrier coating film for the purification of auto-emission gas.Its performance is equivalent to the level of SB powder made in Germany and the gel used for catalyst carrier for the purification of auto-emission gas made in U.S.A.Some indexes are even superior than them.
Main technical indexes:
1.Chemical formula: Al2O3.nH2O(n=1.2-1.8)
2.Crystalline phase:Pseudo boehmite
3.Physicochemical indexes:
 

Al2O3 ≥75%
Fe2O3 ≤0.07%
Na2O ≤0.07%
Pore volume 550°C,3h) cm3/g ≥0.38
Specific surface area (550°C,3h) m2/g ≥300
Pore distribution  30A-80A(550°C,3h) ≥80%
Loss of ignition   % ≤23%
r-Al2O3  (900°C 2h) % ≥98%
Pore volume   (900°C,3h) cm3/g ≥0.45
Specific surface area   (900°C,3h) m2/g ≥200
Pore distribution  30A-100A (900°C,3hr) ≥80%
Particle size 325-1000(Mesh) 350-1000
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