Chinese name: Magnesium oxide
English name: Magnesium oxide
CAS: 1309-48-4
EINECS number: 215-171-9
Molecular formula: MgO
MDL number: MFCD00011109
Molecular weight: 40.3
Appearance: White powder.
Appearance: white amorphous powder. Odorless, tasteless. Insoluble in water, insoluble in alcohol, soluble in acid or ammonium salt solution.
Solubility: slightly soluble in water.
Melting point: 2852 °C(lit.)
Boiling point: 3600 °C
Density: 3.58
Refractive index: 1.736
Flash point: 3600°C
Storage conditions: no restrictions.
Solubility: 5 M HCl: 0.1 M at 20 °C, clear, colorless
Form: nanopowder
Specific gravity: 3.58
Color: White
PH: 10.3 (H2O, 20℃)(saturated solution)
Odor: wh.powd. or cryst., odorless
resistivity: 1.3 ∞ 10*15 (ρ/ μω.cm)
Water solubility: 6.2 mg/L (20 ºC), reacts
Crystal structure: Cubic
Sensitivity: Air sensitivity
Maximum wavelength (λmax) : λ: 260 nm Amax: ≤0.040
λ: 280 nm Amax: ≤0.025
Merck: 14,5677
Dielectric constant: 9.7 (0.0℃)
Exposure limit: ACGIH: TWA 10 mg/m3
OSHA: TWA 15 mg/m3
NIOSH: IDLH 750 mg/m3
Stability: Stable. Incompatible with bromine trifluoride, bromine trichloride and phosphorus pentachloride.
InChIKey: CPLXHLVBOLITMK-UHFFFAOYSA-N
use
Used as refractory material, rubber filler, used in the manufacture of paint, pigment, cosmetics, magnesium cement and medicine