Magnesium Oxide

Magnesium Oxide (MgO) – Caustic Calcined Magnesite

Product Overview

Magnesium Oxide (MgO), also known as Caustic Calcined Magnesite, is a highly reactive inorganic compound obtained through the controlled calcination of natural magnesite (MgCO₃). Renowned for its high magnesium content and alkaline properties, it serves as a multifunctional raw material used in fertilizers, animal feed, wastewater treatment, and chemical manufacturing.

At Tuna Sourcing, we supply ISO 22000-certified Magnesium Oxide produced from premium natural magnesite via precise thermal processing. Our MgO offers consistent purity, reactivity, and fineness, ensuring superior performance in both agricultural and industrial applications. It is available in feed-grade, fertilizer-grade, and industrial-grade forms to meet a wide range of customer needs.

Specifications

Available Types

• Feed Grade MgO (Caustic Calcined Magnesite)

• Fertilizer Grade MgO (Granular or Powder Form)

• Industrial Grade MgO (Technical and Chemical Use)

Technical Details

• Chemical Formula: MgO

• Purity: 85–98% (depending on grade)

• Loss on Ignition (LOI): ≤ 10%

• Bulk Density: 0.75–1.2 g/cm³

• pH (10% suspension): 10.0–11.5

• Appearance: White to light grey powder

• Origin: Turkey

• Shelf Life: 24 months (dry storage)

Packaging Options

• 25 kg craft or polypropylene bags

• 1000–1350 kg big bags (bulk supply)

• Ventilated, moisture-resistant packaging available

• Custom labeling and palletization for export

Applications

Feed & Agriculture

• Magnesium supplement for ruminants and poultry

• Enhances bone strength and metabolic efficiency in livestock

• Neutralizes soil acidity and enriches soil magnesium levels

Industrial Use

• Component in wastewater and flue gas treatment

• Used in rubber, paper, paint, and refractories industries

• Raw material for magnesium-based chemical synthesis

• Applied in insulation, cement, and glass manufacturing

Why Choose Tuna Sourcing

✔ Derived from high-purity natural magnesite deposits

✔ ISO 22000-certified and heavy-metal free production

✔ High reactivity and consistent fineness for multiple applications

✔ Flexible grades for feed, fertilizer, and industry

✔ Reliable global logistics and bulk supply options

Choose Tuna Sourcing’s Magnesium Oxide (MgO) for superior purity, reactivity, and reliability — the trusted magnesium source for feed, fertilizer, and industrial applications worldwide.