规格

指标名称

分析纯-AR

化学纯-CP

含量content

≥99.0

≥99.0

澄清度试验Clarity test

≤3号

≤4号

水不溶物%Water insoluble substance

≤0.005

≤0.01

氯化物（Cl）%chloride

≤0.001

≤0.002

硫化合物（以SO4计）%Sulfur compounds

≤0.003

≤0.006

磷酸盐（PO4）% phosphate

≤0.0005

≤0.001

氮总量（N）%Total nitrogen

≤0.0005

≤0.001

硅酸盐（SiO3）%silicate

≤0.001

≤0.002

镁（Mg）%magnesium

≤0.0003

≤0.0006

铝（Al）%aluminium

≤0.0005

≤0.001

钾（K）%potassium

≤0.003

≤0.006

钙（Ca）%calcium

≤0.003

≤0.005

铁（Fe）%iron

≤0.0002

≤0.0005

重金属（以Pb计）% heavy metal

≤0.0003

≤0.0005