|
Appearance
|
A fine white powder
|
|
Assay (as MgO; on ignited basis)
|
Min 29%
|
|
Alkalinity
|
Passes IP test
|
|
Arsenic (As)
|
Max 0.0004%
|
|
Heavy metal (as Pb)
|
Max 0.004%
|
|
Chloride (Cl)
|
Max 0.05%
|
|
Sulphate (SO4)
|
Max 0.5%
|
|
Acid absorption
|
Passes IP test
|
|
Water soluble salts
|
Passes IP test
|
|
Loss on ignition (at 900°C)
|
17 - 34%
|