| Sr. No. |
CHARACTERISTICS
|
REQUIREMENT |
| 1 |
Description
|
Snow
White, free flowing
powder.
|
| 2 |
Moisture % by
Mass @ 105c for 1 hour |
5.0 - 7.0 |
| 3 |
Loss on ignition
@ 850c for 1 hour |
8.0 - 10.0 |
| 4 |
Bulk Density Compact
(After 50 Taps)-gm/ml |
0.08 - 0.06 |
| 5 |
Oil Absorption
% by wieght |
210 - 230 |
| 6 |
pH 5% Aqueous
Slurry |
6.5 - 7.5 |
| 7 |
Assay % by Mass
before ignition (Min) |
90.0 |
| 8 |
Assay % by Mass
after ignition ( Min) |
99.5 |
| 9 |
Iron (as Fe+++)
ppm Max. |
500 |
| 10 |
Sulphate (as SO4
) ppm Max. |
450 |
| 11 |
Chloride (as C1
) ppm Max. |
350 |
| 12 |
Other Metallic
Oxides - % (Max) |
1.0 |
| 13 |
Retention on 325
Mesh - % by Mass (Max) |
0.5 |
| 14 |
Average Particle
Size |
5 mm |
| 15 |
BET Surface Area
– m2/gm |
180 – 200 |