Iodine Solution

IUPAC Name	: Iodide
Cas Number	: 7553-56-2
HS Code	: 28012000
Formula	: I₂

Basic Info

Appearance Name	: Brown Liquid
Common Names	: Potassium Triiodide
Packaging	: 1000 kg IBC drums

Industry

Pharmaceutical

Water Treatment Chemicals

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Technical Document

Brief Overview

Potassium triiodide is a dark brown-violet solution of potassium iodide with iodine in water. A small amount may be used for emergency disinfection of drinking water.

Manufacturing Process

The most commonly used (nominal) 5% solution consists of 5% (wt/v) metallic iodine (I2) and 10% (wt/v) potassium iodide (KI) mixed in distilled water, and has a total iodine content of 126.4 mg/mL. The iodide combines with metallic iodine to form a high concentration of potassium triiodide (KI3) solution. There is some excess potassium.

Medical Industry

Reagent added to the vagina and cervix during colposcopy
Reagent used to better visualize the mucogingival junction in the mouth
Oxidizing germicide which is washed off with 70% ethanol solution to avoid scarring and discoloration of the skin
Reagent used to arrest the flow of blood

Science Industry

Dye fixative when performing a Gram stain
Indicator test for the presence of starches in organic compounds
Cell stain used to make the cell nuclei more visible and to preserve phytoplankton samples
Reagent used in experiments to observe how a cell membrane uses osmosis and diffusion