|
Appearance
|
A light white powder
|
|
Assay (as MgO; complexometric)
|
40 - 50%
|
|
Appearance of solution
|
Passes test
|
|
Substance soluble in water
|
Max 1%
|
|
Substance insoluble in acetic acid
|
Max 0.05%
|
|
Chloride (Cl)
|
Max 0.125%
|
|
Sulphate (SO4)
|
Max 0.3%
|
|
Heavy metal (as Pb)
|
Max 0.002%
|
|
Arsenic (As)
|
Max 0.0002%
|
|
Calcium (Ca)
|
Max 0.75%
|
|
Iron (Fe)
|
Max 0.04%
|