Product Description
Potassium iodide is a stable ionic inorganic iodine compound with light-sensitive properties and specific chemical reactivity, capable of generating silver iodide precipitate with silver ions. Besides its traditional application in photographic materials, it is a standardized food and feed iodine fortifier with safe, reliable and high-purity characteristics.
Product Parameters
| Melting point | 681 °C (lit.) |
| Boiling point | 184 °C(lit.) |
| Density | 1.7 g/cm3 |
| Vapor density | 9 (vs air) |
| Vapor pressure | 0.31 mm Hg ( 25 °C) |
| Refractive index | 1.677 |
| Fp | 1330°C |
| Storage temp. | 2-8°C |
| Solubility | H2O: 1 M at 20 °C, clear, colorless |
| Form | Particles (round) |
| Pka | 0.06[at 20 ℃] |
| Color | Yellow |
| Specific Gravity | 3.13 |
| Odor | Odorless |
| PH | 6.0-9.0 (25℃, 1M in H2O) |
| Water Solubility | 1.43 kg/L |
| Sensitive | Hygroscopic |
| Merck | 147,643 |
| Exposure limits | ACGIH: TWA 0.01 ppm |
| Dielectric constant | 5.12 |
| BCS Class | 1 |
| Stability | Stable. Protect from light and moisture. Incompatible with strong reducing agents, strong acids, steel, aluminium, alkali metals, brass, magnesium, zinc, cadmium, copper, tin, nickel and their alloys. |
| InChIKey | NLKNQRATVPKPDG-UHFFFAOYSA-M |
| LogP | -0.958 at 25℃ |
| CAS DataBase Reference | 7681-11-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Potassium iodide(7681-11-0) |
| EPA Substance Registry System | Potassium iodide (7681-11-0) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 26 |
| Safety Statements | 22-36/38 |
| WGK Germany | 1 |
| RTECS | TT2975000 |
| F | 10 |
| TSCA | Yes |
| HS Code | 28276000 |
| Hazardous Substances Data | 7681-11-0(Hazardous Substances Data) |
| Toxicity | Approx LD i.v. in rats: 285 mg/kg (Hildebrandt) |
Application Scenarios
Livestock & Poultry Breeding – Widely added in feed to compensate for insufficient natural iodine intake, ensuring normal growth, reproduction and lactation of breeding animals. It eliminates various physiological lesions and growth obstacles induced by iodine deficiency.
Food Fortification Industry – Compliant with national food additive standards, it is used for iodine fortification in table salt and infant formula foods with strictly regulated dosages. It provides essential elemental iodine for human daily nutritional supplementation and maintains basic metabolic balance.
