Magnesium peroxide

Magnesium peroxide
Magnesium peroxide
CAS number 1335-26-8
PubChem 159386
ChemSpider 55637 YesY
EC number 238-438-1
Jmol-3D images Image 1
Molecular formula MgO2
Molar mass 56.3038 g/mol
Appearance White or off-white powder
Density 3 g/cm3
Melting point

223 °C

Boiling point

350 °C (decomp)

Solubility in water insoluble
Crystal structure Cubic, cP12
Space group Pa-3, No. 205
R-phrases R8
S-phrases S17, S36
Main hazards Oxidizing (O)
NFPA 704
NFPA 704.svg
 YesY peroxide (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Magnesium peroxide is a fine powder peroxide with a white to off-white color. It is similar to calcium peroxide because magnesium peroxide also releases oxygen by breaking down at a controlled rate with a hydrous fluid. Besides this it can be used in bleaching, disinfecting, and deodorizing.

In contact with water it decomposes by the reactions:

MgO2+ 2 H2O → Mg(OH)2 + H2O2
2 H2O2 → 2 H2O + O2


Magnesium peroxide being environmentally benign and its stable oxygen release are used widely in the cosmetic, agricultural, pharmaceutical, and environmental industries. It is used to reduce contaminant levels in groundwater. Magnesium peroxide is used in the bioremediation of contaminated soil and can improve the soil quality for plant growth and metabolism. It also used in the aquaculture industry for bioremediation.

Commercially, magnesium peroxide exists as a form of compound of magnesium peroxide and magnesium hydroxide.

One medical use is as a lower bowel stool hydrator, which has a similar softening effect on the stool as a laxative, but with a reduced purgative response. The slow release of oxygen in the lower bowel allows beneficial aerobic pro-biotic bacteria and yeasts to proliferate, whilst at the same time providing a poor environment for anaerobic pathogens. The subsequent increase in the probiotic activity increases the volume of bacteria, and the resultant bowel distension triggers a bowel evacuation response. Magnesium Peroxide has been found to effectively re-hydrate stool and improve motility in constipation.

External links

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Look at other dictionaries:

  • magnesium peroxide — Chem. a white, tasteless, water insoluble powder, MgO2, used as an antiseptic and as an oxidizing and bleaching agent. Also called magnesium dioxide. * * * …   Universalium

  • magnesium peroxide — Chem. a white, tasteless, water insoluble powder, MgO2, used as an antiseptic and as an oxidizing and bleaching agent. Also called magnesium dioxide …   Useful english dictionary

  • magnesium peroxide — noun A fine white powder, MgO, used as a bleach and disinfectant …   Wiktionary

  • Magnesium carbonate — Magnesium carbonate …   Wikipedia

  • Magnesium sulfate — Anhydrous magnesium sulfate Epsomite (heptahydrate) …   Wikipedia

  • Magnesium hydroxide — IUPAC name Magnesium hydroxide …   Wikipedia

  • Magnesium oxide — IU …   Wikipedia

  • Peroxide — A peroxide is a compound containing an oxygen oxygen single bond. The simplest stable peroxide is hydrogen peroxide. Superoxides, dioxygenyls, ozones and ozonides compound are considered separately. NOTOC Organic chemistry In organic chemistry,… …   Wikipedia

  • Magnesium — A mineral involved in many processes in the body including nerve signaling, the building of healthy bones, and normal muscle contraction. Magnesium is contained in all unprocessed foods. High concentrations of magnesium are found in nuts,… …   Medical dictionary

  • Calcium peroxide — Chembox new Name = Calcium peroxide ImageSize = 200px ImageName = Calcium peroxide OtherNames = E930 Section1 = Chembox Identifiers CASNo = 1305 79 9 Section2 = Chembox Properties Formula = CaO2 MolarMass = 72.08 g/mol Density = 2.9 g/cm3 Solvent …   Wikipedia

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