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Potassium iodide

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Potassium iodide is a widely used ingredient in cosmetics, personal care, and skincare formulations. Depending on its function, it may serve as a moisturizer, preservative, emulsifier, or active ingredient to enhance the overall effectiveness and performance of a product.

Potassium iodide (Wikipedia)

Potassium iodide is a chemical compound, medication, and dietary supplement. It is a medication used for treating hyperthyroidism, in radiation emergencies, and for protecting the thyroid gland when certain types of radiopharmaceuticals are used. It is also used for treating skin sporotrichosis and phycomycosis. It is a supplement used by people with low dietary intake of iodine. It is administered orally.

Potassium iodide
Clinical data
Trade namesIosat, Thyrosafe, Thyroshield, others
Other namesSSKI
AHFS/Drugs.comMonograph
License data
Routes of
administration		By mouth
ATC code
Legal status
Legal status
Identifiers
  • Potassium iodide
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.028.782 Edit this at Wikidata
Chemical and physical data
FormulaKI
3D model (JSmol)
Density3.13 g/cm3
Melting point681 °C (1,258 °F)
Boiling point1,330 °C (2,430 °F)
Solubility in water1280 mg/mL (0 °C (32 °F))
1400 mg/mL (20 °C (68 °F))
1760 mg/mL (60 °C (140 °F))
2060 mg/mL (100 °C (212 °F))
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
  • [K+].[I-]
  • InChI=1S/HI.K/h1H;/q;+1/p-1 checkY
  • Key:NLKNQRATVPKPDG-UHFFFAOYSA-M

Common side effects include vomiting, diarrhea, abdominal pain, rash, and swelling of the salivary glands. Other side effects include allergic reactions, headache, goitre, and depression. While use during pregnancy may harm the baby, its use is still recommended in radiation emergencies. Potassium iodide has the chemical formula KI. Commercially it is made by mixing potassium hydroxide with iodine.

Potassium iodide has been used medically since at least 1820. It is on the World Health Organization's List of Essential Medicines. Potassium iodide is available as a generic medication and over the counter. Potassium iodide is also used for the iodization of salt.

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