Magnesium Oxide 96% Light

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Magnesium oxide (MgO), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium. 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.

  • Refractory material
  • One of the raw materials for making cement
  • Used by libraries to preserve books
  • Heartburn and sour stomach relief

Minimum Assay: >96%
Molecular Formula: MgO
Molecular Weight: 40.30
Solubility in water (% weight): Insoluble in water
Melting Point: 2852°C
Boiling Point: 3600°C
Refractive Index: 1.736
Loss on ignition at 800°C: <1.78%
Free Alkali & Soluble Salts: <1.8%
Acid Insoluble Substances: <0.00%
Calcium (Ca): <0.5%
Heavy Metals (as Pb): <0.002%
Iron (Fe): <0.001%

Hazard Phrases: Not considered harmful under normal laboratory conditions

Cas No: 1309-48-4
Einecs No: 215-171-9

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250gm, 500gm, 1Kg, 5Kg