Potassium iodide
Potassium iodide
CAS: 7681-11-0
Molecular Formula: KI
Potassium iodide - Names and Identifiers
| Name | Potassium iodide |
| Synonyms | Potassium iodide POTASSIUM IODINE GOLD COAST SOLUTION NO 3 Potassium iodide solution Potassiumiodidewhitepowder |
| CAS | 7681-11-0 |
| EINECS | 231-659-4 |
| InChI | InChI=1/HI.K/h1H;/q;+1/p-1 |
Potassium iodide - Physico-chemical Properties
| Molecular Formula | KI |
| Molar Mass | 166 |
| Melting Point | 680℃ |
| Boling Point | 1420℃ |
| Water Solubility | 1.43 kg/L |
| Solubility | Soluble in water, ethanol, acetone and glycerin, insoluble in ether, |
| Appearance | Colorless Crystal |
| Storage Condition | RT, dark |
| Sensitive | Easy to absorb moisture and sensitive to light |
| MDL | MFCD07370792 |
| Physical and Chemical Properties | Traits colorless or white cubic crystals. Odorless, with a strong bitter and salty taste. melting point 681 ℃ boiling point 1330 ℃ relative density 3.13 soluble in water, soluble in ethanol, methanol, acetone, glycerol and liquid ammonia, slightly soluble in ether. Its aqueous solution is neutral or slightly alkaline. |
| Use | Used in photographic emulsion, soap, lithographic printing, organic synthesis, medicine, food additives, etc |
Potassium iodide - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Safety Description | S24/25 - Avoid contact with skin and eyes. |
Potassium iodide - Upstream Downstream Industry
| Raw Materials | Iodine |
| Downstream Products | Potassium iodide nessler'S Mercury iodide Methyl iodide |
Potassium iodide - Reference
| Reference Show more | 1. Chen ran, Liu Jie, Zhang Xiangwen. Application of oxygen scavenger to enhance thermal oxidation stability of endothermic hydrocarbon fuels [J]. Chinese Journal of fuel chemistry, 2020, v.48(02):130-137. 2. Wang, Wei, et al. "Gold-nanoshell-functionalized polymer nanoswimmer for photographic communication of single-cell membrane." Journal of the American Chemical Society 141.16 (2019): 6601-6608.https:// doi.org/10.1021/jacs.8b 13882 3. [IF = 6.609] Lin Zhao et al. "Storage period prediction and metal compatibility of endotherapeutic hydrocarbon fuels." Fuel. 2018 Dec;233:1 4. [IF=4.939] Lili Wen et al."Protein Aggregation and Performance Optimization Based on Microconformational Changes of Aromatic Hydrophobic Regions."Mol Pharmaceut. 2018;15(6):2257-2267 5. [IF=0.393] Gong Si et al."Enhanced Thermal Oxidation Stability of Jet Fuel by Deoxygenation Treatment."Chem Tech Fuels Oil . 2020 Sep;56(4):627-637 |
Potassium iodide - Nature
Open Data Verified Data
colorless or white cubic crystals. Odorless, with a strong bitter and salty taste. Relative density 3. 12. Melting point 680 °c. Boiling point 1420 °c. Deliquescence in moist air. In light and air can precipitate free iodine and yellow, more likely to yellow in acidic aqueous solution. Soluble in water, dissolved when significantly absorb heat, soluble in ethanol, acetone, methanol, glycerol and hydrogen, slightly soluble in ether. Potassium iodide aqueous solution is neutral or slightly alkaline.
Last Update：2024-01-02 23:10:35
Potassium iodide - Preparation Method
Open Data Verified Data
formic acid reduction method: a technical grade iodine tablet is added to a reactor with stirring, water is added, and a potassium hydroxide solution having a relative density of about 1.3 is slowly added with stirring to complete the reaction. The reaction solution was purple-brown in color. When the pH value was 5~6, some potassium iodate crystals appeared in the container. The potassium iodate was reduced by slow addition of formic acid to the solution. The solution after the reduction of formic acid is added with caustic potash, and the pH value is adjusted to 9 to 10. The steam is introduced and kept for 1-2H. The mixture was allowed to stand and insoluble matter was removed by filtration to obtain a clear filtrate, which was concentrated by evaporation until most of the crystals were precipitated. The crystals were cooled, crystallized and centrifuged, and dried at 110 ° C. To obtain a finished potassium iodide product.
Last Update：2022-01-01 08:51:51
Potassium iodide - Introduction
Slightly deliquescent. If the iodine is separated for a long time or when the light is precipitated, it will turn yellow. Save against moisture and light. Its aqueous solution is neutral or slightly alkaline and can dissolve iodine. Approximate lethal dose (rat, vein) 285mg/kg.
Last Update：2022-10-16 17:28:32
Potassium iodide - Use
Open Data Verified Data
potassium iodide is often used as a corrosion inhibitor for steel pickling or as a synergist for other corrosion inhibitors. Potassium iodide is the raw material for the preparation of each iodide and dye. Used as photographic emulsifier, food additives, used in medicine as expectorants, diuretics, prevention and treatment of goiter and hyperthyroidism before surgery with drugs, also used as analytical reagents.
Last Update：2022-01-01 08:51:52
Potassium iodide - Safety
Open Data Verified Data
The product was packed in brown ground glass bottles and sealed with wax. Each bottle had a net weight of 0.5kg and 1kg. Transport in a box containing 10 bottles per box. Or packed in an iron drum lined with a plastic bag with a net weight of 50kg per barrel. Packaging operations should be performed in a dark room or under red light. Should be stored in a cool, dark, dry warehouse. The mouth must be sealed. Co-storage and co-transportation with drugs are not allowed. Protection against rain and sun exposure during transport. During loading and unloading, care should be taken. Vibration and impact are strictly prohibited to prevent package breakage. Fire, water, sand and all kinds of fire extinguishing. Toxicity and protection see iodine.
Last Update：2022-01-01 08:51:52
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View History
Potassium iodide
6-酮哌啶-3-羧酸甲酯
二水氟化铜(II)
2247207-66-3
4-氟-3,5-二甲基L-DL-苯丙氨酸
N5-(4-硝基苯基)-L-谷氨酰胺水合物
2-(3-氯-5-(三氟甲基)吡啶-2-基)乙酸
4-(TRIFLUOROMETHYL)PHENETHYL ALCOHOL
6-酮哌啶-3-羧酸甲酯
二水氟化铜(II)
2247207-66-3
4-氟-3,5-二甲基L-DL-苯丙氨酸
N5-(4-硝基苯基)-L-谷氨酰胺水合物
2-(3-氯-5-(三氟甲基)吡啶-2-基)乙酸
4-(TRIFLUOROMETHYL)PHENETHYL ALCOHOL
Raw Materials for Potassium iodide
Downstream Products for Potassium iodide