GROUP VIIA

A chemical element with the symbol I and atomic
number 53.
Synthesis of thyroid hormones

CCl4 or CHCl3

Expectorant, antiseptic, antimicrobial

Antidote of Iodine

Expectorant, antiseptic, antimicrobial

Strong Iodine Solution / Lugol’s Solution
Saturated Solution of Potassium Iodide (KISS)

Increase solubility of I2

2% iodine in 50% alcohol with NaI

Polyvinylpyrolidone (PVP)
- Iodophores – liberates free iodine

liberates free iodine

Phenolated Iodine Solution
- Disinfectant

Carbolised Iodine Solution
- Antiseptic

Astatine is also known as

Least electronegative element
- Only Synthetic halogen
- Only Radioactive halogen
- Only Metallic Halogen