Description

Magnesium carbonate is a chemical compound with the formula MgCO3. This white solid exists in nature as a mineral. Several hydrated and basic forms of magnesium carbonate also exist as minerals. Additionally, MgCO3 has various applications and uses:
• Magnesite and dolomite minerals are used to produce magnesium and basic refractory bricks
• In gymnastics to prevent slipping on the uneven bars
• In fireproof compounds and extinguishers
• Cosmetics and toothpastes
As a food additive, it is known as E504, for which the only known side effect is that it can act as a laxative in high concentrations.
Other applications include filler material, smoke suppressant in plastics, reinforcing agent in neoprene rubber, as a drying agent, laxative, and for retaining color in foods.
Additionally, high-purity magnesium carbonate is used as an antacid and as an additive for table salt, to make it flow better.
In 1911, MgCO3 was first added to salt to make it flow more freely.
Magnesium carbonate, commonly known as chalk, is used to dry hands in climbing, gymnastics, shot put, and weightlifting.