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Sigma-Aldrich

Magnesium oxide

BioUltra, ≥97.0% (calcined substance, KT)

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Synonym(s):
Magnesia, MgO
Linear Formula:
MgO
CAS Number:
Molecular Weight:
40.30
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.25

product line

BioUltra

Quality Level

Assay

≥97.0% (calcined substance, KT)

impurities

insoluble matter, passes filter test
≤0.002% total nitrogen (N)

loss

≤3% loss on ignition, 900 °C

mp

2852 °C (lit.)

solubility

5 M HCl: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤10 mg/kg

cation traces

Al: ≤20 mg/kg
As: ≤0.1 mg/kg
Ba: ≤10 mg/kg
Bi: ≤10 mg/kg
Ca: ≤500 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
K: ≤50 mg/kg
Li: ≤50 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤2000 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤20 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in 5 M HCl

UV absorption

λ: 260 nm Amax: ≤0.040
λ: 280 nm Amax: ≤0.025

SMILES string

O=[Mg]

InChI

1S/Mg.O

InChI key

CPLXHLVBOLITMK-UHFFFAOYSA-N

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Application

Magnesium oxide is used as a dietary supplement to study its effects on processes such as the rate of calcium uptate and ATPase activity. MgO is used in the development of various nanoparticles.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Zi-Yu Wang et al.
International journal of nanomedicine, 6, 871-875 (2011-07-02)
To explore the preparation and characterization of a novel nanosized magnetic liposome containing the PEI-As(2)O(3)/Mn(0.5)Zn(0.5)Fe(2)O(4) complex. Mn(0.5)Zn(0.5)Fe(2)O(4) and As(2)O(3)/Mn(0.5)Zn(0.5)Fe(2)O(4) nanoparticles were prepared by chemical coprecipitation and loaded with PEI. The PEI- As(2)O(3)/Mn(0.5)Zn(0.5)Fe(2)O(4) complex was characterized using transmission electron and scanning
Verena Wilhelmi et al.
Toxicology in vitro : an international journal published in association with BIBRA, 26(2), 323-334 (2011-12-27)
Current hazard characterisation of nanoparticles (NP) is predominantly based on in vitro test systems, being established for small molecules of drugs and chemicals. However, specific physicochemical properties of NP may result in interference with assay components, biomarkers, or detection systems.
Charles T Campbell et al.
Journal of the American Chemical Society, 134(43), 18109-18115 (2012-10-05)
Adsorbed molecules are involved in many reactions on solid surface that are of great technological importance. As such, there has been tremendous effort worldwide to learn how to predict reaction rates and equilibrium constants for reactions involving adsorbed molecules. Theoretical
Benjamin Michen et al.
Environmental science & technology, 47(3), 1526-1533 (2013-01-05)
Ceramic filters, working on the depth filtration principle, are known to improve drinking water quality by removing human pathogenic microorganisms from contaminated water. However, these microfilters show no sufficient barrier for viruses having diameters down to 20 nm. Recently, it
Jian-Bin Shi et al.
Carbohydrate research, 359, 65-69 (2012-08-29)
This work describes the structural changes of bagasse hemicelluloses during the cooking process involving active oxygen (O(2) and H(2)O(2)) and solid alkali (MgO). The hemicelluloses obtained from the bagasse raw material, pulp, and yellow liquor were analyzed by high-performance anion-exchange

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