Magnesium sulfate monohydrate

Magnesium sulfate monohydrate (CAS 14168-73-1), also designated E518, is an inorganic magnesium salt supplying both magnesium and sulfate ions.

Where is Magnesium sulfate monohydrate used?

• Food and beverage: acidity regulator and magnesium fortification agent in sports drinks, infant formula and functional foods
• Brewing: adjusts sulfate levels in process water, influencing mineral profile and flavor development
• Agriculture: corrects soil magnesium deficiencies and is incorporated into foliar sprays and compound fertilizer blends
• Pharmaceuticals: excipient and mineral source in tablet and oral supplement formulations
• It functions as a mineral supplement, pH buffer and nutrient source where controlled water content is critical.

Good to know: Compared to the heptahydrate form, this lower-hydrate grade is particularly useful where moisture-sensitive processing demands reduced water content.

Commercial specifications

• Food-grade (FCC, E518-compliant), USP/BP pharmaceutical grade and technical grade
• Packaging from 25 kg bags to bulk quantities depending on grade and application