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Magnesium oxide (MgO), or magnesia Supplier Manufacturer in Chennai India

Magnesium oxide (MgO), or magnesia Supplier Manufacturer in Chennai India

Chennai Chemical industry Based in Chennai India , Chennai chemical are a leading Chemical Manufacturer and Supplier of Magnesium oxide (MgO), or magnesia in Chennai India . We are supplied into various industrial markets including Household ,Institutional Cleaning, Personal Care and Industrial sectors including Oil Field, Agriculture, Lubricants, Metal Working chemical industry and Coatings markets.

Magnesium oxide (MgO), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium (see also oxide). It has an empirical formula of MgO and consists of a lattice of Mg2+ ions and O2− ions held together by ionic bonding. Magnesium hydroxide forms in the presence of water (MgO + H2O → Mg(OH)2), but it can be reversed by heating it to separate moisture.

Magnesium oxide was historically known as magnesia alba (literally, the white mineral from magnesia – other sources give magnesia alba as MgCO3), to differentiate it from magnesia negra, a black mineral containing what is now known as manganese.


MgO is prized as a refractory material, i.e. a solid that is physically and chemically stable at high temperatures. It has two useful attributes: high thermal conductivity and low electrical conductivity. “By far the largest consumer of magnesia worldwide is the refractory industry, which consumed about 56 % of the magnesia in the United States in 2004, the remaining 44 % being used in agricultural, chemical, construction, environmental, and other industrial applications. MgO is used as a basic refractory material for crucibles.

Niche uses

MgO is one of the components in Portland cement in dry process plants.Magnesium oxide is used extensively in the soil and groundwater remediation, wastewater treatment, drinking water treatment, air emissions treatment, and waste treatment industries for its acid buffering capacity and related effectiveness in stabilizing dissolved heavy metal species.


As a food additive, it is used as an anticaking agent. It is known to the US Food and Drug Administration for cacao products; canned peas; and frozen dessert.[16] It has an E number of E530.

It is used as a reference white color in colorimetry, owing to its good diffusing and reflectivity properties.

It may be smoked onto the surface of an opaque material to form an integrating sphere.

It is used extensively as an electrical insulator in tubular construction heating elements.

It is also used as an insulator in heat-resistant electrical cable.

MgO is packed around transuranic waste at the Waste Isolation Pilot Plant, to control the solubility of radionuclides.

MgO has an important place as a commercial plant fertilizer and as animal feed.

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