High pure magnesium oxide require the content of MgO more than 96.5%, which is used in high-end industry production such as food, medicine, silicon steel sheet and others.
Food grade magnesium oxide is used as food additives, color retention,PH modification or magnesium supplement. When made granulated sugar, it is used as decolorising agent. When made ice cream powder, it is used as PH modification. In the fields of wheat flour, milk powder, chocolate powder, powdered sugar, cocoa, grapes, it is used as anti-caking agent and antacids. What is more, it also can be used in the manufacture of ceramic, enamel, glass, dye and other fields.
Pharmaceutical grade magnesium oxide can be used in biomedical field as antacids, adsorbent, desulfurizer, take off the lead agent, complexing filter aid, PH regulator. When it used in medical field, it used as antacids and laxative, playing the role of inhibiting and relieving hyperacidity, curing the diseases of gastric and duodenal ulcer. The advantage of pharmaceutical grade magnesium oxide is that the effect of neutralizing stomach acid is strong, slow and persistent, and it will not produce carbon dioxide.
Silicon steel grade magnesium oxide mainly used in oriented silicon steel sheet. There are many functions in the production, the first is to be used as a high temperature annealing isolation agent, secondly easily to form magnesium silicate vitreous insulation coating with silicon, thirdly the function is to remove impurities such as sulfur and phosphorus in silicon steel.
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