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项目ltem 化学纯 (CP) 含量(CaI2•4H2O)Assay,% ≥ 98.0 水不溶物lnsoluble matter in water,% ≤ 0.01 游离酸(以HI)Free acids,% ≤ 0.01 游离碱(以CaCO3计)Free alkali,% ≤ 0.01 碘及碘酸盐(以I2计)Iodine and iodate,% ≤ 0.01 氯及溴(以CI计)Choride and bromide,% ≤ 0.01 硫酸盐(SO4)Sulfale,% ≤ 0.01 总氮量(N)Total nitrogen,% ≤ 0.01 铁(Fe)Iron,% ≤ 0.001 重金属(以Pb计)Heavy metals,% ≤ 0.001 碱金属及镁Alkali metals and magnesium,% ≤ 0.2
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