Potassium iodide(KI)

Tiffany Wong F.3D (31)

Potential Hazards

IrritantIrritant OxidisingOxidising ToxicToxic

Basic information

Physical Properties Melting Point:681 °C Boiling Point:1330 °C Physical state at room

temperature:crystalline solid

Colour: white Density: 3.123 g/cm3 Solubility in water:

128 g/100 ml (0 °C)206 g/100 mL (100°C)

Do not conduct electricity

Chemical Properties Mild reducing agent Easily oxidised by

powerful oxidising agent, such as chlorine

KI is oxidised even more easily under acidic conditions

Precautions Potassium iodide is a mil

d irritant, so it should be handled with gloves

Uses contained in hair processing chemicals in order to preven

t later sun bleaching used in photography, in the preparation of silver (I) iodid

e for high speed photographic film used as an expectorant to treat lung congestion

Interesting characteristics Potassium iodide may also be used to protect the thyroid

from radioactive iodine in the event of an accident or attack at a nuclear power plant, or other nuclear attack

In case of a nuclear emergency, iodine is used for the cleaning of wounds and should not be ingested. It is a poison.

Resources

① http://en.wikipedia.org/wiki/Potassium_iodide

② http://www.righthealth.com/topic/Potassium_iodide

③ http://www.healthcareprescriptiondrugabuse.com/Potassium_iodide.html