| 单词 | Karl Fischer reagent | 
| 释义 | Karl Fischer reagentnoun  Karl Fisch·er reagent   ˈkärlˈfishər-   : a colored solution of pyridine, sulfur dioxide, iodine, and anhydrous methanol that reacts quantitatively with water to form a colorless solution and is used to determine the amount of water in numerous substances   | 
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