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This standard applies to papermaking, chemical industry, building materials, rubber, ceramics, animal husbandry and light-burned magnesia powder for magnesia manufacture. Lightly burnt powder
grade | Physical and chemical indicators | ||||
MgO≧ | SiO2≦ | CaO≦ | Fe2O3≦ | IL≦ | |
high purity powder | 93.5 | 0.8 | 1.2 | 0.65 | 5 |
plain powder | 90 | 3.5 | 2 | 0.8 | 5 |
85 | 5 | 2.5 | 0.8 | 7 | |
plain powder | 75 | 8 | 3 | 0.9 | 12 |
70 | 12.36 | 6.42 | 0.36 | 11 |