氧化镁Mgo≥             99.8             99.5              99.2             99.0               99
氧化Ca≤                 0.001          0.003             0.003           0.005            0.01
盐≤                      0.03            0.05               0.05             0.06             0.05
铁Fe≤                        0.001          0.005             0.005           0.008            0.02
化物Cl≤                  0.003          0.003             0.003           0.005            0.02
氧化铝Al0≤                0.001          0.002              0.03             0.05             0.06
酸不溶≤                       0.1             0.1                  0.1               0.1               0.1
白度≤                           93              93                  92                90                90
密度g/ml≤                 3.58            3.58               3.58              3.5               3.58

硅PU用氧化镁物理性质：氧化镁的分子式：MgO
       氧化镁的分子量：40.30（按国际原子质量）
       外观：白色粉末

轻质氧化镁广泛用于橡胶、橡胶板、橡胶制品、医药行业、食品行业。

电熔氧化镁具有耐高温熔融金属的腐蚀性和常温下热传导性。
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