Potassium iodide starch paper (potassium iodide starch paper)

Japanese: ヨウ化カリウムデンプン紙(沃化カリウム澱粉紙) - ようかカリウムでんぷんし(英語表記)potassium iodide starch paper
Potassium iodide starch paper (potassium iodide starch paper)
A type of test paper used to detect oxidizing agents. The filter paper is soaked in a solution of 3 g of potassium iodide and 5 g of soluble starch dissolved in water to make 1 liter, and then dried. When wet, it reacts sharply with traces of oxidizing agents, turning blue. It is used to detect chlorine, ozone, hydrogen peroxide, etc., and as an external indicator for hypochlorite titration. [Nakahara Katsumasa]

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
酸化剤の検出に用いられる試験紙の一つ。ヨウ化カリウム3gと可溶性デンプン5gを水に溶かして1lにした溶液にろ紙を浸し,これを乾燥したもの。湿った状態で微量の酸化剤と鋭敏に反応して青色を呈する。塩素,オゾン,過酸化水素などの検出,次亜塩素酸塩滴定の外部指示薬として利用される。【中原 勝儼】

出典 株式会社平凡社世界大百科事典 第2版について 情報

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