Appearance：White or off-white granular powder

Assay:

Al2O3：15.30%-18.70%

MgO：36.00%-44.00%

The content ratio of Al2O3 & MgO：0.40-0.45

Positive reaction：Complies

Acid strength：260ml min

PH：8.0-10.0

Na：Complies

Chloride：Complies

Sulfate：Complies

Alkali metal carbonate：Complies

Loss on ignition：40.0%-50.0%

Heavy metal：Complies