指标名称

规格

分析纯AR

化学纯CP

定制

含量

99.0%~101.0%

99.0%~102.0%

可定制3N、4N、5N、6N

pH值 (50g/L ,25℃)

7.0~10.5

7.0~10.5

澄清度试验,号

≤3

≤5

水不溶物

≤0.005%

≤0.01%

氯化物

≤0.005%

≤0.01%

硫酸盐

≤0.005%

≤0.01%

硝酸盐

≤0.005%

≤0.02%

磷酸盐

≤0.0005%

≤0.001%

铵

≤0.001%

≤0.005%

铁

≤0.001%

≤0.002%

钨

≤0.2%

≤0.3%

重金属(以Pb计)

≤0.0005%

≤0.001%