Specification of AluSil- B

Sr. No. Test Parameters Specification / Limits
1 Appearance A fine white odorless powder free from signs of impurity.
2 Moisture Max. 7.0 % at 105° C for 2 hrs
3 Loss on Ignition (Dry Basis) Max. 15.0 % at 1000° C for 2 hrs
4 PH (20 % Aqueous Solution) Between 9.0 to 10.5
5 Linseed Oil Absorption ml/100 gm Between 80 ml to120 ml/100 gm
6 Residue on 325 Mesh
(Wet Sieving Method)
Max. 0.10 %
7 Average Particle Size
D50 (Micron)
Max. 6.0 Micron
8 Whiteness by Reflection Compared with MgO as 100 % Min. 97.0 %
9 Iron Content (as Fe) Max. 200 ppm
10 BET Surface Area (m2/gm)  Between 70 to 100 m2/gm
11 Al2O3 Content Between 9.0 % to 13.0 % 
12 SiO2 Content (Anhydrous Basis) Min. 84.0 %

Specification of AluSil-N

Sr. No. Test Parameters Specification / Limits
1 Appearance A fine white odorless powder free from signs of impurity.
2 Moisture Max. 7.0 % at 105° C for 2 hrs
3 Loss on Ignition (Dry Basis) Max. 15.0 % at 1000° C for 2 hrs
4 PH (20 % Aqueous Solution) Between 6.0 to 7.5
5 Linseed Oil Absorption ml/100 gm Between 80 ml to120 ml/100 gm
6 Residue on 325 Mesh
(Wet Sieving Method)
Max. 0.10 %
7 Average Particle Size D50 (Micron) Max. 6.0 Micron
8 Whiteness by Reflection Compared with MgO as 100 % Min. 97.0 %
9 Iron Content (as Fe) Max. 200 ppm
10 BET Surface Area (m2/gm) Between 70 to 100 m2/gm
11 Al2O3 Content Between 9.0 % to 13.0 %
12 SiO2 Content (Anhydrous Basis) Min. 84.0 %

Specification of PARADD OP

Sr. No. Test Parameters Specification / Limits
1 Appearance A fine white odorless powder free from signs of impurity.
2 Moisture Max. 7.0 % at 105° C for 2 hrs
3 Loss on Ignition (Dry Basis) Max. 15.0 % at 1000° C for 2 hrs
4 PH (20 % Aqueous Solution) Between 9.0 to 10.5
5 Linseed Oil Absorption ml/100 gm Between 80 ml to120 ml/100 gm
6 Residue on 325 Mesh
(Wet Sieving Method)
Max. 0.10 %
7 Average Particle Size D50 (Micron) Max. 6.0 Micron
8 Whiteness by Reflection Compared with MgO as 100 % Min. 97.0 %
9 Iron Content (as Fe) Max. 200 ppm
10 BET Surface Area (m2/gm)  Between 70 to 100 m2/gm
11 Al2O3 Content Between 9.0 % to 13.0 %
12 SiO2 Content (Anhydrous Basis) Min. 84.0 %

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