What is MgO used for?
Magnesium oxide is used for relief of heartburn and sour stomach, as an antacid, magnesium supplement, and as a short-term laxative. It is also used to improve symptoms of indigestion. Side effects of magnesium oxide may include nausea and cramping.
This powder is mainly magnesium oxide, MgO. The hot magnesium supplies enough energy for oxygen molecules to split up, breaking the very strong O=O double bond. Each magnesium atom gives two electrons to an oxygen atom, so magnesium oxide is made of magnesium ions, Mg2+, and oxide, O2– ions.
- Compounds are substances that contain atoms of at least two elements chemically combined. For example: magnesium oxide consists of magnesium atoms and oxygen atoms chemically bonded together.
- Magnesium oxide is poorly absorbed, and hence likely to cause diarrhea. We do not recommend magnesium oxide. If one is going for maximum absorption, it is best to use smaller divided doses throughout the day than one big dose once a day. Because it helps with constipation, magnesium can also be used as a laxative.
- When magnesium burns, it is actually reacting with oxygen in the air and not with fire. Fire is what we call the heat and light produced when things burn. Magnesium reacts with oxygen to make a compound called magnesium oxide. The bright light results because this reaction produces a lot of heat.
When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide. A compound is a material in which atoms of different elements are bonded to one another. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction.
- Magnesium and zinc are often used as sacrificial metals. They are more reactive than iron and lose their electrons in preference to iron. Although tin is used to coat steel cans, it does not act as a sacrificial metal. Instead, it acts only as a barrier to stop air and water reaching the surface of the iron or steel.
- When ignited, Thermite produces very high temperatures (over 4,000 degrees F), along with generous amounts of molten metal. Thermite is typically very difficult to ignite, requiring a temperature of over 3,000 degrees F just to get the reaction started.
- There is no evidence that magnesium produces systemic poisoning although persistent over-indulgence in taking magnesium supplements and medicines can lead to muscule weakness, lethargy and confusion. Effects of exposure to magnesium powder: low toxicity & not considered to be hazardous to health.
Updated: 2nd October 2019