|
Physico
chemical parameters
|
|
Index name
|
Φ2 ~ 2.5
|
Φ2.5 ~ 3.5
|
|
Abrasion rate,%
|
≤ 0.25
|
≤ 0.20
|
|
Bulk density,g/ml
|
≥ 0.55
|
≥ 0.60
|
|
Static water absorption , %
|
≥ 20.0
|
≥ 20.0
|
|
Static normal hexane absorption, %
|
≥ 12.0
|
≥ 12.0
|
|
Specific surface area,m2/g
|
≥ 120
|
≥ 150
|
|
Compressive strength point contact strength,N/ grain
|
≥30
|
≥30
|
|
Variation coefficient of resistance to crushing
|
≤ 0.3
|
≤ 0.3
|
|
Granularity, %
|
≥ 96.0
|
≥ 96.0
|
|
Water content of packed product,%
|
≤ 1.5
|
≤ 1.5
|
|
Platinum content%
|
0.1~1.0±0.02
|
|
CAS No.
|
7440-06-4
|
|