Potassium Iodide

Synonym(s)

: Pima, kali iodide

Mol. Formula

: KI

EC / List no.

: 231-659-4

CAS no.

: 7681-11-0

Molecular weight

: 166,0028

Potassium iodide is a metal halide composed of potassium and iodide with thyroid protective and expectorant properties. Potassium iodide can inhibit the absorption of radioactive iodine by the thyroid gland by filling the thyroid with non-radioactive iodine and preventing the uptake of radioactive molecules, thereby protecting the thyroid from cancer-causing radiation.

Application

» Used in adsorbents, machine wash fluids/detergents, automotive care products, paints, coatings or adhesives, fragrances and air fresheners, coolants in refrigerators, oil-based electric heaters, hydraulic fluids in automotive suspension, lubricants in engine oil and brake fluids.

Product Specifications

Physical and Chemical Properties
» Potassium iodide is a white solid.
» It is odorless and has a strong bitter salty taste.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	681- 685
Boiling point	°C	1323
Density	g/cm3	3.12- 3.213	20 °C
Solubility	g/ L	1429- 1260000	25 °C, soluble with water
Vapor pressure	hPa	1.333	731- 745 °C
Autoignition temperature		Non- flammable
pH		7-9
LogP		-0. 958	25 °C
Refractive index		1.677