Potassium Iodine Cas: 7681-11-0
| Catalog Number | XD91857 |
| Product Name | Potassium Iodine |
| CAS | 7681-11-0 |
| Molecular Formula | KI |
| Molecular Weight | 166 |
| Storage Details | 2-8°C |
| Harmonized Tariff Code | 28276000 |
Product Specification
| Appearance | Yellow powder |
| Assay | 99% min |
| 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 |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| Specific Gravity | 3.13 |
| PH | 6.0-9.0 (25℃, 1M in H2O) |
| Water Solubility | 1.43 kg/L |
| Sensitive | Hygroscopic |
| 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. |
Manufacture of photographic emulsions; in animal and poultry feeds to the extent of 10-30 parts per million; in table salt as a source of iodine and in some drinking water; also In animal chemistry. In medicine,potassium iodide is used to regulate the thyroid gland.
Potassium Iodide is a source of iodine and a nutrient and dietary supplement. it exists as crystals or powder and has a solubility of 1 g in 0.7 ml of water at 25°c. it is included in table salt for the preven- tion of goiter.Potassium Iodide is used primarily used in the treatment of radiation poisoning due to environmental contamination by iodine-131.
Potassium iodide is a white crystal, granule or powder made by the reaction of iodine with hot potassium hydroxide solution followed by crystallization. It is very soluble in water, alcohol, and acetone. Potassium iodide was first used as the primary halide in Talbot’s calotype process, then in the albumen on glass process followed by the wet collodion process. It was also used as a secondary halide in silver bromide gelatin emulsions.
