Español
العربية
Francés
Русский
Português
Deutsch
Italiano
Kazakh
Uzbek
Potassium iodide CAS#7681-11-0
CAS Number: 7681-11-0
Chemical Formula: KI
Synonyms:
IODINE SOLUTION
IODINE-IODINE
IODIDE, ION CHROMATOGRAPHY STANDARD SOLUTION
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Appearance: White Powder
Potassium iodide CAS#7681-11-0
Potassium iodide is a white crystals, granules, or powder; strong, bitter, saline taste. becomes yellowish when exposed to bright light due to photochemical decomposition liberating traces of free iodine. Soluble in water, alcohol, acetone, and glycerol. slightly soluble in ether and ammonia. It may be prepared bythe reaction of iodine with hot potassiumhydroxide solution followed by separation from the iodate (which isalso formed) by fractional crystallization. In solution it has the interestingproperty of dissolving iodine to formthe triiodide ion I3-, which is brown. Potassium iodide is widely used as ananalytical reagent, in photography,and also as an additive to table salt toprevent goitre and other disordersdue to iodine deficiency.Potassium iodide is a metal iodide salt with a K(+) counterion. A compound that contains pentavalent iodine, which is usually ionically bound to electropositive atoms. It is a scavenger of hydroxyl radicals. It has a role as a radical scavenger and an expectorant. It contains an iodide. It is a type of iodine that is not radioactive and can be used to help block one type of radioactive material, radioactive iodine (I-131), from being absorbed by the thyroid.
| Potassium iodide Chemical Properties |
| Melting point | 681 °C (lit.) |
| Boiling point | 184 °C(lit.) |
| bulk density | 1500kg/m3 |
| 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 |
| pka | 0.06[at 20 ℃] |
| form | particles (round) |
| color | Yellow |
| Specific Gravity | 3.13 |
| Odor | odorless |
| PH | 6.0-9.0 (25℃, 1M in H2O) |
| Flame Color | Violet or light purple |
| biological source | rabbit |
| Water Solubility | 1.43 kg/L |
| Sensitive | Hygroscopic |
| Merck | 14,7643 |
| Exposure limits | ACGIH: TWA 0.01 ppm |
| Dielectric constant | 5.1200000000000001 |
| 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. |
| Cosmetics Ingredients Functions | ANTIMICROBIAL |
| 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) |
| Absorption | cut-off at 273nm in H2O at 1M |
| Safety Information |
| Hazard Codes | Xn |
| Risk Statements | 26 |
| Safety Statements | 22-36/38 |
| WGK Germany | 1 |
| RTECS | TT2975000 |
| F | 10 |
| TSCA | TSCA listed |
| HS Code | 28276000 |
| Hazardous Substances Data | 7681-11-0(Hazardous Substances Data) |
| Toxicity | Approx LD i.v. in rats: 285 mg/kg (Hildebrandt) |
Product Application of Potassium iodide CAS#7681-11-0
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, animal feeds, catalysts, photographic chemicals, and for sanitation. Potassium iodide is produced by reaction of potassium hydroxide with iodine. The product is purified by crystallization from water. Potassium iodide is ionic compound which iodine ions and silver ions can form yellow precipitate silver iodide (when exposes to light, it can decompose, it can be used to make high-speed photographic film), silver nitrate can be used to verify the presence of iodine ions.
Factory and Equipment Show
Fast delivery time
Inventory 2-3 working days New production 7-10 working days
