Magnesium Carbonate is a basic hydrated magnesium carbonate or a normal hydrated magnesium carbonate.It contains the equivalent of not less than 40.0percent and not more than 43.5percent of magnesium oxide (MgO).

Packaging and storage— Preserve in well-closed containers.

Identification— When treated with 3Nhydrochloric acid,it dissolves with effervescence,and the resulting solution responds to the tests for Magnesium á191ñ.

Microbial limits á61ñ— It meets the requirements of the test for absence of Escherichia coli.