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Electrical Grade Magenesium Oxide

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FormulaMgO
Molecular Weight40.3
CAS No.1309-48-4 
Appearance Light Brown powder
TypeG1G1C
Sheath Temperature≤850ºC≤750ºC
Silicone TreatmentLow
SealingNecessary
ChemicalsMgO % min.94.0%
CaO % max.1.5%
SiO2 % max.3.0%
Al2O3 % max.1.0%
Fe2O3 % max.7.0%
LOI % max.1.5%
Particle Size+40 mesh (425μ) % max.0.5%
+50 mesh (300μ) %3±3%
+60 mesh (250μ) %28±7%
+80 mesh (180μ) %23±5%
+140 mesh (106μ) %25±5%
+200 mesh (75μ) %13±4%
+325 mesh (45μ) %9±3%
-325 mesh (45μ) %3±3%5±3%
Flow Rate, S/100g160±20
Tap Density, g/cm32.40±0.03
Electrical Performance*Power Load (W/cm2)108
**Leakage Current (mA) max.0.5
Puncture (V/0.5mA-1S) min.1500
*Standard ElementsAn 8.0mm to 6.6mm O.D. roll reduced Incoloy element with a heated length of 48±2 cm having a 2.2 mm O.D. 0Cr25Al5 helix.
**Leakage Current Stands for leakage current in milliampere and the energized period lasts for 15 minutes.
Packingin cartons of 25kgs net each, 2000kgs on pallets
Applicationused in high quality elements of low wattage loading or liquid heating element. Such us for Air Conditioning Tube, Rice Cookers Tube, Kettle Tube etc.
Remarks1.Particle Size distribution and Tap Density can be modified if necessary.
2.High-Temperature Magnesia, which is treated with light silicone, stands 1050ºC/5mins annealing process. Sealing is necessary.
3.Sheath temperature is up to 850ºC.
4.Shelf life: 12 months.


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