For example, which chemical is used in KF titration?

Question

Accepted Answer

Potassium iodide (KI) is commonly used in Karl Fischer (KF) titration.

Potassium iodide (KI) is added to the Karl Fischer reagent to enhance the solubility of water.
KI reacts with water to form iodine, which is then titrated with the Karl Fischer reagent.
The reaction between KI and water in KF titration is as follows: KI + SO2 + H2O → KHSO4 + I2
The iodine formed is then quantitatively determined by titration with the Karl Fischer reagent.
KF titration is commonly used for the determination of water content in various substances.

Accepted Answer

Imidazole/pyridine + sulphur dioxide+ iodine + methanol

Accepted Answer

Disodium tetra borate

Interview Questions Asked to QC Chemist at Other Companies