EMAIL THIS PAGE TO A FRIEND
1.05866 Supelco

Magnesium oxide

for analysis (max.0.001% SO₄) EMSURE® ACS

Synonym: Magnesia usta, Magnesium oxide

  • CAS Number 1309-48-4

  • Empirical Formula (Hill Notation) MgO

  • Molecular Weight 40.30

  •  MDL number MFCD00011109

  •  EC Index Number 215-171-9

Purchase

Properties

Quality Level   300
grade   ACS reagent
assay   ≥97% (complexometric)
form   solid
pH   10.3 (20 °C in H2O, saturated solution)
bp   3600 °C/1000 hPa
mp   2800 °C
density   3.58 g/cm3 at 25 °C
bulk density   100 kg/m3
anion traces   carbonate (CO32-): ≤1.5%
  chloride (Cl-): ≤0.01%
  nitrate (NO3-): ≤0.005%
  sulfate (SO42-): ≤0.001%
  sulfate, sulfite (as SO42-): ≤0.02%
cation traces   As: ≤ 0.0001%
  Ba + Sr (as Ba): ≤ 0.005%
  Ca: ≤ 0.05%
  Cu: ≤ 0.001%
  Fe: ≤ 0.005%
  K: ≤ 0.005%
  Mn: ≤ 0.0005%
  N: ≤ 0.002%
  Na: ≤ 0.25%
  Pb: ≤ 0.001%
  Zn: ≤ 0.0005%
  heavy metals (as Pb): ≤ 0.003%
InChI   1S/Mg.O
InChI key   CPLXHLVBOLITMK-UHFFFAOYSA-N
storage conditions   no restrictions.

Description

Analysis Note

Identity: passes test
Assay (complexometric): ≥ 97 %
Appearance of solution: passes test
Substances soluble in water: ≤ 0.4 %
Substances insoluble in hydrochloric acid: ≤ 0.02 %
Substances precipitated by ammonia: ≤ 0.02 %
Carbonate (as CO₂): ≤ 1.5 %
Chloride (Cl): ≤ 0.01 %
Nitrate (NO₃): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.001 %
Sulfate and sulphite (as SO₄): ≤ 0.02 %
Total nitrogen (N): ≤ 0.002 %
Heavy metals (as Pb): ≤ 0.003 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.05 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.005 %
K (Potassium): ≤ 0.005 %
Mn (Manganese): ≤ 0.0005 %
Na (Sodium): ≤ 0.25 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.0005 %
Barium and Strontium (as Ba): ≤ 0.005 %
Loss on ignition (1000 °C): ≤ 2.0 %
Conforms to ACS

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety & Documentation

Safety Information

Protocols & Articles

Articles

EMSURE® Premium grade products

The EMSURE® quality grade designates our premium classical Inorganics and Solvents, which are optimized for regulated analyses and highly demanding lab applications. These products offer the highest ...
Keywords: Solvents

Metals and Metal Oxides EMSURE®, EMPLURA®

We provide an extensive range of metals and metal oxides suitable for a multitude of applications in R&D, production and quality control. Selected raw materials, state-of-the-art production technolog...

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?