Magnesium Oxide is an inorganic powder with a high magnesium content, and its performance is influenced by the assay, calcium oxide level, insoluble matter, and ignition loss. Under the current specification, the Magnesium Oxide assay must fall between 96.0% and 100.5%, giving buyers a basis for assessing whether its magnesium content suits their intended formulation.
The material differs from a generic mineral powder because calcium oxide is controlled at ≤1.50%, acid-insoluble matter at ≤0.1%, and loss on ignition at ≤5.0%. For buyers, these limits indicate consistent mineral content and a low level of insoluble residue.
For food and nutrition applications, arsenic must not exceed 3 ppm, while lead must remain at or below 4 ppm. Before placing an order, buyers should verify the required grade, particle form, and regulations in the destination market; powder, granular, and direct-compression grades can each require different processing.
