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High Purity Reactive Calcined Magnesium Oxide

Description

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.

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   As     < 0.5 ppm   Hg < 0.01 ppm
S
    < 100 ppm   Cd     < 0.1 ppm   Pb < 0.5 ppm
Na   < 200 ppm
Physical Properties
Bulk Density, loose, kg/m3 (lb/ft3)
600 (37)
Mean particle size, microns
7
6-10
Surface area, m2/gram
40
40-60
Citric acid activity, seconds
40
30-20
Screen size, % passing 125 micron, wet(120#)
100
99.5
Screen size, % passing 45 micron, wet(350#)
(Custom Miling vailable)
75
75
Pack size (50 bags/pallet)
20 kg

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