Causmag® SGW is a high purity grade of Magnesium Oxide produced from Cryptocrystalline magnesite. It is processed under closely controlled conditions to give a finely divided white powder with high surface area, low iron levels and a very high MgO content. Causmag® SGW is also available in granule form.
High Purity Reactive Calcined Magnesium Oxide
Description
Uses
Causmag® SGW has low impurity levels combined with high MgO purity and excellent reactivity, which ensures top performance over a wide range of chemical applications. These vary from treatment of boiler feed water, efficient neutralization and chemical processes requiring a low iron, high purity magnesia, as used in the formulation of special grades of enamel frits and magnesium stearates, sugar juice and other specialities.
Composition
| Typical | Specification | |
|---|---|---|
| Magnesium Oxide (MgO)% Ignited Basis | 98.3 | 97.6 min |
| Calcium Oxide (CaO) % | 0.8 | 1.0 max |
| Silica (SiO2) % | 0.6 | 1.0 max |
| Iron Oxide (Fe2O3) % | 0.08 | 0.15 max |
| Aluminium Oxide (Al2O3) % | 0.19 | 0.2 max |
| Loss on ignition % | 2.0 | 3.5 max |
| Acid Insols % | < 0.15 |
| Cl | < 300 ppm |
|---|---|
| S | < 100 ppm |
| Na | < 200 ppm |
| As | < 0.5 ppm |
| Cd | < 0.1 ppm |
| Hg | < 0.01 ppm |
| Pb | < 0.5 ppm |
Physical Properties
| Bulk Density, loose, kg/m3 (lb/ft3) | 600 (37) | |
|---|---|---|
| Mean particle size, granules | 7 | 6-10 |
| Surface area, m2/gram | 40 | 40-60 |
| Citric acid activity, seconds | 40 | 40-60 |
| Screen size, % passing 125 micron, wet(120#) | 100 | 99.5 |
| Screen size, % passing 45 micron, wet(350#)(Custom Miling vailable) | 75 | 75 |
Packaging
50 bags/pallet – 20 kg
