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|| Sow || Billets || Wirerods ||Calcined Alumina||Cast strips||Alumina Chemicals||Alumina Hydrate||

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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:
 
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:  
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  
High alumina porcelain * *   *  
High voltage insulators * *       

Al. ceramics/refractories

* *   * *
China ware,Syn. marble       * *
Polishing *   *      
Cements & Plastics       * *  
 

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.

 
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