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| CHEMICAL AND PHYSICAL PROPERTIES
|
Description
|
:
|
A white or nearly white powder free from gritty
particles, odourless, tasteless, slightly hygroscopic |
| Solubility |
: |
Insoluble in water and ethanol |
| Identification |
: |
Passes B.P. test |
| Alkalinity |
: |
Passes B.P. test |
| Arsenic |
: |
Less than 4 ppm |
| Heavy Metals |
: |
Less than 40 ppm |
| Chloride |
: |
Passes B.P. test |
| Sulphate |
: |
Passes B.P. test |
Acid absorption
(on Ignited basis) |
: |
Not less than 100 ml /gm. (0.1 N Hcl) |
| Soluble Salts |
: |
Passes B.P. test |
Loss on Ignition
|
:
|
Not Less than 17%
Not more than 34 % |
| MgO (on ignited basis) |
: |
Minimum 29.0 % |
| SiO2 (on ignited basis) |
: |
Minimum 65.0 % |
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