Active Magnesium Oxide RA 40

Product Description
Product | Active Magnesium Oxide RA 40 |
CAS | 1309-48-4 |
Formula | MgO |
Synonym | Magnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711) |
Typical Product Specifications
Density | 3.65-3.75 |
Very Soluble | in water |
Melting Point | 2800 c |
Magnesium Oxide as MgO (by difference) | 98.0 - 100.0 % |
Calcium as CaO | 0.45% max |
Silicon as SiO2 | 0.04% max |
Aluminum as Al2O3 | 0.015% max |
Chloride as Cl | 0.25% max |
Sulphate as SO4 | 0.50% max |
Sodium as Na | 0.2% max |
Potassium as K | 0.01% max |
Bulk Density (10 taps) | 0.60 g/cc max |
Iron as Fe2O3 | 0.03% max |
Loss on Ignition | 7.0% max |
Surface area (BET) | 40 - 70 m2/g |
Particle Size: Passes 325 mesh (wet Sieve) | 99.0% min |
Insolubility | in alcohol |
Odor | wh. powd. or cryst., odorless |
Molecular weight | 40.31 |
Solubility | dil. acids, ammonium salt solns. |
Boiling Point | 3600 c |
Notes | For use where reactivity is required, as an acid accelerator in hapolymer system and as a thickener and viscosity modifier in SMC (sheet-molding compound) formulations. Use: ABSORBENT, BUFFERING, OPACIFYING |
Class | Inorganic Chemicals: Nitrates, Phosphates, Oxides & more, Specialty Chemicals, Magnesium Compounds |
Industry | Industrial, Plastics, Rubber |

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