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無機化學試劑
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    碘化鉀
詳細介紹

產品名稱:碘化鉀           級別: AR/CP

執行標準:GB/T 1272-2007

分子式:KI

性狀:本試劑為白色結晶,易溶于水,可溶于乙醇、丙酮。在潮濕空氣中微具潮解性,久置會析出游離碘而呈黃色。

危險特性:本品與羥基胺、鎂接觸能劇烈反應。

禁配物:有毒品


項  目

指 標

AR

CP

含量(KI),W/%              ≥

99.0

98.5

pH(50g/L溶液,25℃)

6.0~8.0

6.0~8.0

澄清度試驗,號               ≤

3

5

水不溶物,W/%

0.01

0.02

碘酸鹽及碘(以IO3計), W/%   ≤

0.002

0.005

氯化物及溴化物(以CL計),W/%     ≤

0.02

0.05

硫酸鹽(SO4),W/%              ≤   

0.005

0.01

磷酸鹽(PO4),W/%              ≤

0.002

--

總氮量(N),W/%                  ≤

0.002

0.002

鈉(Na),W/%                  ≤

0.1

--

鎂(Mg), W/%                    ≤

0.002

0.005

鈣(Ca), W/%                    ≤

0.002

0.005

鐵(Fe),W/%                  ≤

0.0003

0.0005

砷(As), W/%                  ≤

0.00002

--

鋇(Ba), W/%                  ≤

0.002

0.004

重金屬(以Pb計), W/%          ≤

0.0005

0.001

還原性物質

合格

--

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