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Description
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| 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. |
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Uses
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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.
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| Composition |
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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
< 5 ppm
Na <
200 ppm |
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| Physical
Properties |
| Bulk
Density, loose, kg/m3 (lb/ft3) |
600
(37) |
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| 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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