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Overview of magnesium oxide

Magnesium oxide (chemical formula: MgO) an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in nature in the form of periclase and is the raw material for magnesium smelting.
Magnesium oxide has high fire resistance and insulation properties. It can be converted into crystals after being burned at a high temperature above 1000°C. When it rises to 1500-2000°C, it becomes dead burnt magnesia (also known as magnesia) or sintered magnesia.
The characteristic of magnesium oxide
When exposed to the air, magnesium oxide easily absorbs water and carbon dioxide and gradually becomes basic magnesium carbonate. Light products are faster than heavy products and combine with water to form magnesium hydroxide under certain conditions, showing a slightly alkaline reaction, saturated aqueous solution The pH is 10.3. It is soluble in acid and ammonium salt and hardly soluble in water, and its solution is alkaline. Magnesium oxide is insoluble in ethanol. It has strong refraction in the visible and near-ultraviolet range. Magnesite (MgCO3), dolomite (MgCO3•CaCO3) and seawater are the main raw materials for the production of magnesium oxide. Thermal decomposition of magnesite or dolomite obtains magnesium oxide. Treat seawater with slaked lime to get magnesium hydroxide precipitation, and burn magnesium hydroxide to get magnesium oxide. It is also possible to use the magnesium chloride halide obtained in the comprehensive utilization of seawater or the brine after bromine extraction as raw materials, add sodium hydroxide or sodium carbonate, etc. to produce magnesium hydroxide or basic magnesium carbonate precipitation and then burn to obtain magnesium oxide.

Classifications and applications of magnesium oxide
There are two types of light magnesia and heavy magnesia. Lightweight and bulky, it is a white amorphous powder. Additionally, it is odorless, tasteless and non-toxic. The density is 3.58g/cm3. It is hardly soluble in pure water and organic solvents, and its solubility in water increases due to the presence of carbon dioxide. It can be dissolved in acid and ammonium salt solution. It is converted into crystals after high-temperature burning. In the case of carbon dioxide in the air, magnesium carbonate double salt is formed. The heavy matter is compact in volume and is a white or beige powder. It is easy to combine with water, and it is easy to absorb moisture and carbon dioxide in the exposed air. It is easy to gel and harden when mixed with magnesium chloride solution.
With the upgrading of industrialization and the demand and development of the high-tech functional material market, a series of high-tech and fine magnesium oxide products have been developed and produced, which are mainly used for high-grade lubricants, high-grade tanned leather, alkali-extracting grades, food grades, medicines, silicon steel grades, and advanced grades. It is composed of nearly ten varieties including electromagnetic grade and high-purity magnesium oxide.

Supplier of magnesium oxide MgO
As a global supplier of magnesium oxide, Tanki New Materials Co., Ltd has extensive experience in the performance, application, and cost-effective manufacturing of advanced and engineering materials. The company has successfully developed a series of powder materials (molybdenum disilicide, Lanthanum nitride (LAN powder, calcium silicide, iron boride), high-purity targets, functional ceramics, and structural devices, and provide OEM services. For the latest price of magnesium oxide, send us an email or click on the needed products to send an inquiry.


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