项         目 指          标 氧化镁MGO            ﹪≥43-45氧化钙CaO            ﹪≤0.43水分                 ﹪≤2盐酸不溶物           ﹪≤0.1铁盐                 ﹪≤0.02氯化物               ﹪≤0.1砷盐                 ﹪≤--筛余物（150?m）      ﹪≤0.025硫酸盐               ﹪≤0.1灼烧失量             ﹪≤54-58可溶性盐类           ﹪≤--重金属                 ≤--钠                     ﹪--钾                     ﹪--堆积密度             ﹪≤1.1-1.2