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Specifications
Name of index
Premium Grade
First Grade
Qualified product
Magnesium oxide content %≥
95.00
93.00
92.00
Calcium oxide content %≤
1.00
1.50
2.00
Hydrochloric acid insoluble substance %≤
0.10
0.15
0.20
Ferrum content %≤
0.05
0.06
0.20
Loss on ignition %≤
3.50
5.50
5.50
Screenings(150um)≤
0.030
0.050
0.10
Magnesium Oxide