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Potassium Iodide Formula
Potassium Iodide has the formula KI and it is an inorganic compound. It is also known as metal-halide salt. It forms an ionic bond between me– anion and K+ cation. In many organic synthesis reactions, KI is used as an iodide source.
About the Topic
The appearance of KI is colourless to white and it is present in the form of white granules, cubic crystals, or white. The taste of KI is bitter to saline.
The KI is prepared by mixing Potassium Hydroxide with Iodine. The molecular mass of KI is 166 g/mol, its boiling point is 1,330°C, its melting point is 681°C and its density is 3.12 g/m3.
KI is that when KI is introduced to an oxidising agent it gets oxidised into an I2 molecule.
2KI + Cl2 → 2KCl + I2
In acidic conditions, Potassium Iodide is more easily oxidised and it produces HI hydroiodic acid which is a powerful reducing agent.
KI is used in the treatment of hyperthyroidism
KI is used as a nutritional supplement in human
To clear bromides, chlorides, and fluorides from tissue, KI is used
To break up the mucus it is used as an expectant so that patients can breathe easily.
It helps in Iodine loss.
Formula
KI
In the above-mentioned structure, the KI is held with an ionic bond with K being action and I being anion.
KI + KHCO3 → KI + H2O + CO2
FeI2 + K2CO3 → 2KI + FeCO3
Solved Examples
1. Potassium Iodide is a solid, liquid, or gas?
It is a solid white colour with no odour and exists in powder form. It is also added to table salt so that it can be included in dietary Iodine. It is also used to protect the thyroid gland from nuclear radiation.
2. Potassium Iodide is composed of what?
KI is made up of two ions and it is an inorganic compound. Industrially it is prepared using KOH and Iodine. The appearance is white and it is the most commercially important compound.
