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CHEMICAL GRADE ALUMINA
PRODUCTS SPECIFICATION-DATASHEET
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| Properties / Grades => |
NSPL20 |
NSPL30 |
NSPL 40 (PG) |
NSPL 50 |
NSPL 60 |
Unit
Physical properties: |
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| BET Surface Area m2/gm |
1.5-2.5 |
0.5 |
10 (Max) |
60 - 75 |
15 - 40 |
| Alpha Content % |
90 |
95 |
70-90 |
< 10 |
30 - 70 |
| Specific gravity g/cc |
3.8 - 3.9 |
3.85-3.95 |
3.6-3.85 |
3.4 - 3.6 |
3.5 - 3.8 |
| LOI (At 1100 deg.C.) % |
0.3 |
0.2 |
0.5 (Max.) |
1.0-2.5 |
0.5 |
Particle Size Analysis
Median dia.(d50) micron |
4.0 |
4.0 |
1-3 |
70 - 85 |
60 - 85 |
| 45 micron(325 mesh) % |
95 – 100 |
95 – 100 |
96-100 |
6 - 12 |
- |
| Chemical properties: |
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| Al2O3 % |
99.5 |
99.5 |
99.4(Min) |
99.2 |
99.4 |
| Na2O % |
0.3 - 0.45 |
0.3 - 0.45 |
0.30-0.45 |
0.11 |
0.3 -0.45 |
| SiO2 % |
0.02 |
0.02 |
0.030 (Max.) |
<0.015 |
0.03 |
| Fe2O3 % |
0.02 |
0.02 |
0.030 (Max.) |
<0.015 |
0.03 |
| Areas of Applications |
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| High alumina porcelain |
* |
* |
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* |
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| High voltage insulators |
* |
* |
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Al. ceramics/refractories |
* |
* |
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* |
* |
| China ware,Syn. marble |
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* |
* |
| Polishing |
* |
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* |
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| Cements & Plastics |
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* |
* |
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Notes :
1. Values given in specifications are typical and actual values may vary.
2. Tailor made products adjusting to a particular quality can be manufactured other than stated in specifications. |
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| NSPL 100,NSPL 101, NSPL 102, NSPL 103, NSPL 104, NSPL 120, NSPL 121, NSPL 122 |
| NSPL 200,NSPL 201,NSPL 202, NSPL 203, NSPL 204, NSPL 205 |
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