Light & Heavy Magnesium Oxide Industrial Food Grade is a versatile alkaline inorganic functional powder with wide downstream application coverage, and Linkwin implements separated calcination production lines for light magnesium oxide and heavy magnesium oxide to avoid cross mixing, precisely controlling calcination temperature to adjust activity value, bulk density and particle size index, while setting independent quality standards for industrial grade and food/pharma grade to control lead, arsenic and heavy metal residues strictly for high-end safe application scenarios. Light magnesium oxide features loose structure, low stacking density, high chemical activity and large specific surface area, prone to react with acidic substances; heavy magnesium oxide presents compact particle structure, high bulk density, stable chemical inertia, strong filling performance, less hygroscopic carbonation tendency during storage, the two forms have completely targeted application directions to avoid misapplication formulation failure for buyers.

In industrial refractory field, heavy high-purity magnesium oxide is core raw material for magnesia refractory brick, lining refractory castable and high-temperature furnace lining material, possessing excellent high-temperature resistance and slag corrosion resistance. Rubber industry mainly selects light active magnesium oxide as vulcanization activator, acid absorbent and reinforcing filler for neoprene, butyl rubber, fluororubber and silicone rubber, improving crosslinking uniformity, thermal stability and finished product aging resistance. Environmental protection sector uses magnesium oxide for acidic wastewater neutralization, heavy metal ion adsorption and flue gas desulfurization auxiliary agent. Food & pharmaceutical high-end grade magnesium oxide works as oral antacid raw material for gastric medicine, magnesium nutritional supplement excipient, anti-caking agent for powder food and dietary additive. Many overseas buyers often encounter mixed light/heavy model, unstable activity, excessive heavy metal impurities and easy carbonation agglomeration problems from inferior magnesium oxide suppliers; our classified production and moisture-proof sealing packaging completely eliminate these quality defects, stabilizing your finished product formulation consistency and qualification rate.

Test Item	Specification Standard
Product Name	Magnesium Oxide (Light Type / Heavy Type)
Available Grades	Industrial Grade / Food & Pharmaceutical Grade
Appearance	White Fine Powder
Key Differentiator	Bulk Density & Active Magnesium Oxide Content
Core Application	Refractory material, rubber vulcanization activator, pharma excipient, fertilizer additive, wastewater neutralizer
Supporting Certificates	Batch COA, MSDS, heavy metal safety inspection report
Packaging Option	25kg Woven Bag, Jumbo Bag Bulk

Standard packaging is 25kg inner PE liner outer woven bag, jumbo bag bulk container shipment is customizable for large-volume orders to cut unit logistics expenditure. We maintain adequate year-round inventory reserves to shorten order lead time and eliminate raw material shortage shutdown risks for your factory. Complete export documents including batch COA, MSDS, third-party activity & impurity test reports can be issued rapidly to streamline import customs clearance procedures globally. Our sales team can tailor accurate FOB and CIF quotations based on required type, grade, order quantity and destination port, support free sample delivery for formulation trial before bulk purchase, and offer technical guidance for model selection and filling proportion matching. Choosing Linkwin as your magnesium oxide supplier effectively reduces intermediate procurement costs, stabilizes finished product quality and builds sustainable long-term supply cooperation advantage.