Potassium iodide
Product Overview & Quality
- Product Name: Potassium iodide
- Brand: Kemaus (Product Code: KA-409-2)
- Grade: Analytical Reagent (AR Grade) with a certified purity of 99 percent or higher. Meticulously manufactured and verified under Kemaus strict laboratory quality control standards to guarantee exceptionally low trace elements of iodates, heavy metals, chlorides, and bromides (at ppm thresholds). This clean background prevents baseline interference and ensures high operational reliability in complex analytical workflows.
- Physical Properties: Odorless, colorless crystals, white crystalline powder, or white granules with a strong bitter-salty taste. It turns slightly yellow upon extended exposure to atmospheric air and light.
- Solubility: Highly and rapidly soluble in water; readily soluble in alcohol, glycerin, and acetone. Yields a neutral to slightly alkaline aqueous solution.
- Key Use: Heavily utilized as a primary reagent in redox chemistry, notably across iodometric titrations (Iodometry) to quantify oxidizing agents, residual chlorine, and heavy metal concentrations in environmental water and food samples. Commonly applied in combination with elemental iodine to formulate Lugol’s iodine solutions for chemical starch assays, histological staining, and Gram-staining methods in microbiology. Also functions as an essential high-purity iodine source in organic chemical synthesis, and acts as a stabilizing agent in photochemistry research.
Safety & Hazards
- Classification: Causes skin irritation. Causes serious eye irritation. May cause damage to organs (Thyroid) through prolonged or repeated exposure.
- Health Risks: Direct eye contact with fine dust or crystals triggers temporary mechanical irritation, watering, and minor redness. Prolonged skin contact can cause localized dryness or irritation. Inhalation of airborne particles may irritate the upper respiratory tract. Long-term cumulative ingestion can disturb thyroid function profiles.
- First Aid Measures: Flush eyes or skin immediately with plenty of flowing water for at least 15 minutes. Seek medical evaluation if irritation develops or persists.
Handling & Storage
- Storage: Highly Light, Air, and Moisture Sensitive. It is mildly deliquescent in humid air. Exposure to ambient oxygen and light induces a steady chemical oxidation that liberates free iodine, shifting the pristine white powder into an impaired yellowish-brown state. Must be stored in its original, tightly sealed Kemaus amber glass container. Keep in a cool, strictly dry, and dark dedicated chemical zone at stable room temperature (below 30 degrees Celsius). Keep completely away from strong acids and strong oxidizers.
- Precautions: Wear standard personal protective equipment (PPE), including laboratory chemical gloves, safety glasses, and a particulate dust mask. Secure the container cap tightly immediately after each use to minimize open atmospheric contact.







