CAS 1309-48-4 Magnesium oxide - Materials / Alfa Chemistry

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Optical Coatings

Magnesium oxide

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Catalog Number

ACM1309484-2

Product Name

Magnesium oxide

Structure

CAS

1309-48-4

Category

Optical Coatings

Synonyms

MAGNESIUM PERMANGANATE HYDRATE;Ethanedioic acid,magnesium salt;Magnesiumoxalatedihydrate;magnesium oxalate;magnesium oxalate dihydrate,puratronic

Description

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.While “magnesium oxide” normally refers to MgO, magnesium peroxide MgO2 is also known as a compound. According to evolutionary crystal structure prediction, MgO2 is thermodynamically stable at pressures above 116 GPa (gigapascals), and a totally new semiconducting suboxide Mg3O2 is thermodynamically stable above 500 GPa. Because of its stability, MgO is used as a model system for investigating vibrational properties of crystals.

IUPAC Name

oxomagnesium

Molecular Weight

40.30

Molecular Formula

MgO

Canonical SMILES

O=[Mg]

InChI

1S/Mg.O

InChI Key

CPLXHLVBOLITMK-UHFFFAOYSA-N

Boiling Point

3600 c

Melting Point

2852ºC

Flash Point

3600ºC

Purity

0.995

Density

3.58

Solubility

dil. acids, ammonium salt solns.

Appearance

White or light grey powder

Application

Intermediates, Antacid, Catalyst, Drilling Fluid Additives, Flame Retardant, Chemical Intermediate , Breaker

Storage

Magnesium oxide is stable at normal temperatures and pressures.
However, it forms magnesium hydroxide in the presence of water.
Magnesium oxide is hygroscopic and rapidly absorbs water and
carbon dioxide on exposure to the air, the light form more readily
than the heavy form.
The bulk material should be stored in an airtight container in a
cool, dry place.Storage temperature: no restrictions.

Bulk Density

21.0 lbs/ft3

Content

CAO, 0.1% AL2O3, 0.004% SIO2, 0.04% Cl, 0.15% SO4, 0.18%

EC Number

215-171-9

Exact Mass

39.98

Form

(single crystal substrate)

Hazard Class

Impurities