|
SL.NO. |
CONSTITUENT
|
%
WEIGHT OF DRIED MATERIAL |
|
1 |
Insoluble
residue |
IR |
3.0-5.0 |
|
2 |
Silica |
SiO2 |
46.0-50.0 |
|
3 |
Aluminium
oxide |
Al2O3 |
15.0-18.0 |
|
4 |
Iron
oxide |
Fe2O3 |
3.0-6.0 |
|
5 |
Calcium
oxide |
CaO |
12.0-15.0 |
|
6 |
Magnesium
oxide |
MgO |
10.0-15.0 |
|
7 |
Sodium
oxide |
Na2O |
1.0-3.0 |
|
8 |
Potassium
oxide |
K2O |
0.03-0.08 |
|
9 |
Sulphate |
SO3 |
0.02-1.0 |
|
10 |
Chloride |
Cl |
0.01-0.02 |
|
11 |
Loss
on ignition @900°C |
- |
2.0-4.0 |
|
12 |
Calcium
carbonate |
CaCO3 |
20.0-25.0 |
|
13
|
Magnesium
carbonate |
MgCO3
|
20.0-30.0 |
Note: The values given above is the
normal range. However, variations are possible due to
the nature of the deposit.
