- Product Name: Potassium Iodide
- CAS: 7681-11-0
- Catalog: HG-BULK018
- Applications: Analytical Chemistry, Microbial and Plant Research, Fecal Testing, Photography, Pharmaceuticals.
Potassium iodide (KI) is widely known for its use in iodometry, chemical synthesis, and as a reagent in various laboratory settings. Alfa Chemistry offers high-quality KI with diverse applications in scientific, industrial, and pharmaceutical fields.
Key Features
Water Solubility
- 1 g of KI dissolves in 0.7 ml of water, indicating high solubility in water. 1g of KI also dissolves in a variety of solvents: 22 ml in ethanol, 8 ml in boiling ethanol, 51 ml in anhydrous ethanol, 8 ml in methanol, 7.5 ml in acetone, 2 ml in glycerol, approximately 2.5 ml in ethylene glycol.
Hygroscopicity
- KI is slightly hygroscopic, absorbing moisture from the air. Over time, exposure to light and moisture may cause the formation of free iodine and a yellow discoloration.
Toxicity
- KI has an approximate lethal dose (LD50) of 285 mg/kg (intravenous) for rats.
Technical Data
Items | Specification |
Appearance | Colorless transparent or white translucent hexagonal crystal or white granular powder |
Purity | ≥ 99% |
Applications
KI is an essential reagent across a range of industries and scientific disciplines. Key applications include:


Analytical Chemistry
- Used in iodometric titrations for quantitative analysis, particularly in the preparation of iodine solutions for titrations.

Microbial and Plant Research
- KI is a crucial ingredient in the preparation of culture media for plant tissue culture, such as Berlades medium, modified White medium, and Murashige and Skoog (MS) medium, as well as in rooting media (RM) for plant breeding and propagation.

Fecal Testing
- It plays a role in fecal analysis by assisting in chemical reactions that detect iodine or other relevant compounds during diagnostic processes.


Photography
- In the photographic industry, KI is employed to facilitate the development of photographic film, where its iodine content reacts with silver halides.

Pharmaceuticals
- KI is used in the pharmaceutical industry for its iodine content, often in treatments related to thyroid conditions, iodine deficiency, and certain antiseptic formulations.
Storage and Packaging
- Storage Condition: Stored in a cool, dry place away from light and moisture to prevent degradation.
- Packaging: Packaged in 25 kg drums.
Alfa Chemistry's potassium iodide provides a high-quality, reliable product for a wide range of applications in both scientific research and industrial processes. For more information, please feel free to contact us.