MAGNESIUM CARBONATE(CAS: 12125-28-9)

Magnesium carbonate is a white, odorless, crystalline powder with a molecular weight of approximately 124.31 g/mol. It is sparingly soluble in water but soluble in dilute acid. Chemically, it is stable, but it reacts with acids to release carbon dioxide and form magnesium salts. The compound is known for its basicity and reactivity with acids.

Magnesium carbonate is usually synthesized by reacting a magnesium salt, such as magnesium sulfate or magnesium chloride, with sodium carbonate or potassium carbonate in aqueous solution. The process involves heating the mixture to precipitate the magnesium carbonate crystals, which are then filtered, washed, and dried. Catalytic methods using hydrogen carbonate salts can also be employed to improve selectivity and yield.

Magnesium carbonate finds applications in various industries, including pharmaceuticals, as a filler and coating material; polymers, as a flame retardant and filler; sensors, as a component in pH-sensitive materials; and in the food industry, as a leavening agent and stabilizer. It is also used in the preparation of magnesium metal and as a cleaning agent.

When handling magnesium carbonate, use appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work in a well-ventilated area or a fume hood to prevent inhalation of dust. Spills should be cleaned up using a suitable absorbent material, and the area should be thoroughly washed. Refer to the safety data sheet (SDS) for detailed handling instructions and emergency procedures.