Chemical Analysis
|
Al2O3
|
SiO2
|
Fe2O3
|
CaO
|
MgO
|
K2O + Na2O
|
Other
|
|
17-23%
|
>70%
|
<1.0%
|
<1.%
|
<0.5%
|
<3.5%
|
<1%
|
Physical properties
|
Item
|
Value
|
|
Water absorption
|
<0.5%
|
|
Apparent porosity (%)
|
<1
|
|
Specific gravity
|
2.3-2.35
|
|
Operation temp.(max)
|
1000 C
|
|
Moh’s hardness
|
>6.5 scale
|
|
Acid resistance
|
>99.6%
|
|
Alkali resistance
|
>85%
|
Dimension and other physical properties
|
Sizes
(mm) |
Thickness
(mm) |
Surface area
(m2/m3) |
Free volume
(%) |
Number
per m3 |
Bulk density
(kg/m3) |
Packing factor
( m-1) |
|
|
6 × 6
|
1.6
|
712
|
62
|
3022935
|
961
|
5249
|
|
|
12.5 ×12.5
|
2.4
|
367
|
64
|
377867
|
881
|
1903
|
|
|
16×16
|
2
|
305
|
73
|
192 500
|
730
|
900
|
|
|
19×19
|
2.4
|
243
|
72
|
109122
|
801
|
837
|
|
|
25×25
|
3.2
|
190
|
74
|
47675
|
673
|
508
|
|
|
38×38
|
4.8
|
121
|
73
|
13667
|
689
|
312
|
|
|
40×40
|
4.5
|
126
|
75
|
127000
|
577
|
350
|
|
|
50×50
|
4.5
|
93
|
81
|
6 000
|
457
|
220
|
|
|
50×50
|
6.4
|
92
|
74
|
5792
|
657
|
213
|
|
|
80×80
|
9.5
|
46
|
80
|
1910
|
714
|
280
|
|
|
100×100
|
10
|
70
|
70
|
1000
|
700
|
172
|