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63089

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:
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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impurities

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

impurities

Insoluble matter, passes filter test

impurities

insoluble matter, passes filter test, ≤0.0002% total nitrogen (N)

impurities

insoluble matter, passes filter test

mp

2852 °C (lit.)

mp

350 °C (lit.)

mp

-

mp

89 °C (dec.) (lit.)

solubility

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

solubility

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

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

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

anion traces

chloride (Cl-): ≤500 mg/kg, sulfate (SO42-): ≤1000 mg/kg

anion traces

phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤50 mg/kg

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 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

cation traces

As: ≤0.1 mg/kg, Ba: ≤10 mg/kg, Bi: ≤50 mg/kg, Ca: ≤5000 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤100 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mn: ≤10 mg/kg, Mo: ≤5 mg/kg, Na: ≤100 mg/kg, Ni: ≤100 mg/kg, Pb: ≤5 mg/kg, Sr: ≤10 mg/kg, Zn: ≤5 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤2000 mg/kg, Li: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤3000 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤10 mg/kg, Bi: ≤10 mg/kg, Ca: ≤5000 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤100 mg/kg, Li: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤100 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤10 mg/kg, Zn: ≤5 mg/kg

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Magnesium oxide puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E 530, light, 98.0-100.5% (calc. for dried substance)

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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.
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
Magdalena Maciejewska et al.
Journal of chromatography. A, 1257, 141-148 (2012-08-22)
Inverse gas chromatography (IGC) was applied at infinite dilution to evaluate the surface properties of calcium and magnesium oxide nanoparticles and the effect of surface grafted unsaturated carboxylic acid on the nanopowder donor-acceptor characteristics. The dispersive components (γ(s)(D)) of the
Sanket A Deshmukh et al.
Physical chemistry chemical physics : PCCP, 14(44), 15593-15605 (2012-10-19)
Atomic scale characterization of the structure and dynamics of confined water molecules located near the metal oxide-aqueous interface is carried out using molecular dynamics simulations. Proximity effects on water molecules (H(2)O) near a magnesium oxide surface (MgO(100)) at room temperature
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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