---
title: Potassium Iodide
date: 2025-03-05T09:13:42Z
modified: 2026-09-14T10:17:34Z
permalink: "https://allanchem.com/potassium-iodide/"
type: page
status: publish
excerpt: ""
wpid: 4409
timestamp: 2026-09-14T10:17:34Z
tags: []
---

##### CAS Number

7681-11-0















##### Grade

ACS, USP















##### Packaging

Various







































Potassium Iodide is a salt compound formed from potassium and iodine with diverse applications.
**Chemical Formula:** KI
**CAS Number:** 7681-11-0
**Grade:** ACS, USP
**Appearance:** White, odorless, crystalline powder.
**Uses:**
KI floods the thyroid gland with stable, non-radioactive iodine, essentially filling it up and blocking the absorption of radioactive iodine.
It reduces the risk of thyroid cancer, especially in children and young adults who are most susceptible.
**Industries and Common Applications:**
**Medical/ Pharmaceuticals:** This prevents and treats thyroid disorders.
**Textile industry:** It is used in some dyes and textile finishing processes.
**Food additives:** It is utilized in table salt (iodized salt) to prevent iodine deficiency, which can lead to goiter and other health problems.







































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