Particle            Fireclay
Name|Item
Physical & Chemical Characteristicindexes %
SiO 2
Al2O3
Fe2O3
H2O
g/cm3
0.15W/m.k
mesh
Doatomite powder
≥ 66.5
≤16.5
≤4.0
8
≤0.38
350 ±10 ℃
400
≥ 65.5
≤16.5
≤4.5
9
≤0.40
350 ±10 ℃
325
≥65
≤17.5
≤4.8
10
≤0.43
350 ±10 ℃
200
≥65
≤17.5
≤5.0
10
≤0.45
350 ±10 ℃
120
Crude diatomite ore
≥65.5
≤16.5
≤4.5
13
≤0.43
350 ±10 ℃
Particle
≥67
≤17.5
≤2.8
5
≤0.58
0.17W/m.k
100
Roasted diatomite granules
≥67
≤17.5
≤2.8
5
≤0.60
0.17W/m.k
1-8mm
Argil powder
Colloid Index 40%
≤6.9
10
Expansion Coefficient 3.5
100