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Appearance
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A white or off white powder
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pH (10% solution in water)
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5 - 9
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Substance soluble in HCl
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Max 2%
|
|
Carbonate (as CO2)
|
Passes test
|
|
Acid soluble sulphate (SO4)
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Max 0.02%
|
|
Acid soluble iron (Fe)
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Max 0.04%
|
|
Organic impurities
|
Passes test
|
|
Loss on ignition (at 600°C)
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Max 0.5%
|