Magnesium Sulfate

Magnesium sulfate, also known by its chemical formula MgSO4 (anhydrous) or MgSO4·7H2O (heptahydrate), is a versatile compound widely used across various industrial and food sectors. With a molecular weight of 246.47 g/mol (heptahydrate) or 120.37 g/mol (anhydrous), it plays a critical role in numerous applications.

Physical and Chemical Properties

• Appearance: Colorless, prismatic, or needle-shaped crystals.
• Taste: Salty, bitter, and slightly refreshing.
• Relative Density: 2.65.
• Solubility: Highly soluble in water (119.8% at 20 °C) and glycerin, slightly soluble in ethanol.
• Stability: Stable in humid air up to 48 °C but effloresces (loses water) at higher temperatures.
• pH Value: 5.5 to 7.5 for a 50 g/L aqueous solution.

Technical Specifications

• Purity (MgSO4): ≥ 99.0%.
• Heavy Metals (Pb): ≤ 10 mg/kg.
• Chloride: ≤ 0.03%.
• Loss on Ignition: 40.0–52.0% (heptahydrate).

Key Applications

1. Food Industry:
   • Nutritional supplement.
   • Flavor enhancer (especially in fermented beverages).
   • Water hardness regulator.
2. Other Industrial Uses:
   • Pharmaceutical production.
   • Agriculture: Magnesium-based fertilizers.

Packaging

Magnesium sulfate is typically packaged in 25 kg bags for easy handling and storage.