Magnesium carbonate, MgCO3, is an inorganic salt that is a white solid, it’s
CAS NO is 13717-00-5.Several hydrated and basic forms of magnesium carbonate
also exist as minerals. The most common magnesium carbonate forms are the
anhydrous salt called magnesite and the di, tri, and pentahydrates known as
barringtonite, nesquehonite, and lansfordite, respectively. Some basic forms
such as artinite, hydromagnesite, and dypingite also occur as minerals.
Magnesite consists of white
trigonal crystals. The anhydrous salt is practically insoluble in water,
acetone, and ammonia. All forms of magnesium carbonate react in acids.
Magnesium carbonate crystallizes in the calcite structure where in Mg2+ is
surrounded by six oxygen atoms. The dihydrate one has a triclinic structure,
while the trihydrate has a monoclinic structure.
After telling the basic knowledge
about Magnesium carbonate, we will tall about the uses of Magnesium carbonate
in three different aspects, from food additive, hand
chalk to dietary uses.
1. Food additive
Many foods and consumable
substances contain magnesium carbonate. In 1911, the Morton Salt company mixed
salt with magnesium carbonate, which resulted in a product that no longer
became clumpy in humid weather. Magnesium carbonate's water-absorbing property
is the reason for this. This discovery lead to the inclusion of magnesium
carbonate into countless particulates, such as ground spices, sugar and other
food ingredients to prevent caking.
Because the carbonate portion can
dissociate from the magnesium carbonate molecule and bind to hydrogen ions, the
atoms that raise acidity, the chemical is added to some foods to control
acidity. Lastly, magnesium carbonate can extend the life of food coloring in
food by absorbing water that would otherwise dilute the coloring.
2. Hand chalk
Magnesium carbonate's hygroscopic
property makes it useful as more than just a food additive. Pure magnesium
carbonate is a solid, white chalk that many people use on a daily basis.
Athletes in various fields use this chalk as a drying agent to enhance their
grip and improve their performance. The white hands of a gymnast as she dashes
magnesium carbonate on her palms before a routine is a familiar sight for
anyone who watches the Olympics. Magnesium carbonate chalk is commonly used by
weightlifters and billiards players as well.
3. Dietary uses
Because of its alkaline
nature, magnesium carbonate can be consumed as an antacid by people who have
problems with indigestion and heartburn. In large doses, magnesium carbonate
goes from antacid to laxative and can therefore be used to combat constipation
as well. In animal medicine, magnesium sulfate has been used to successfully
treat a variety of gastrointestinal disorders.
In his 1954 paper published in
the Canadian Journal of Comparative Medicine and Veterinary Science, Dr. G.W.
Henderson describes his use of magnesium carbonate in the treatment of calves.
These calves suffered from everything from the scours--neonatal diarrhea common
in newborn bovines--to fevers and constipation. In each case, Dr. Henderson fed
the calves food supplemented with magnesium carbonate, which resulted in the
alleviation of their symptoms
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