Potassium iodate
- CAS No.
- 7758-05-6
- Chemical Name:
- Potassium iodate
- Synonyms
- POTASSIUM IODATE GR;PotassiuM iodate, ACS reagent;POTASSIUM IODATE VOLUMETRIC STANDARD, SE;POTASSIUM IODATE;Potassium Iddate;Potassium Lodate;potassinm iodate;PotassiumIodateBp;Potassium triodate;BAIRD PARKERAR BASE
- CBNumber:
- CB5854303
- Molecular Formula:
- IKO3
Lewis structure
- Molecular Weight:
- 214
- MDL Number:
- MFCD00011406
- MOL File:
- 7758-05-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 560 °C(lit.) |
|---|---|
| Density | 3.93 g/mL at 25 °C(lit.) |
| bulk density | 2000kg/m3 |
| vapor pressure | 0-0Pa at 25℃ |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| form | Powder/Solid |
| pka | 0.047[at 20 ℃] |
| color | White to off-white |
| PH | 6 (50g/l, H2O, 20℃) |
| Odor | at 100.00%. odorless |
| Water Solubility | Soluble |
| Specific Heat Capacity | Cp(crystal): 0.5 J/(g·K), at 25℃ |
| Merck | 14,7642 |
| Solubility Product Constant (Ksp) | pKsp: 3.43 |
| Stability | Stable. Materials to avoid include organics, combustibles, phosphorus, sulfur, carbon, powdered metals, cyanides, hydrides, strong reducing agents, aluminium, peroxides. Explosive when mixed with combustible material. |
| InChI | 1S/HIO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1 |
| InChIKey | JLKDVMWYMMLWTI-UHFFFAOYSA-M |
| SMILES | [K+].[O-]I(=O)=O |
| LogP | -1 at 25℃ |
| CAS DataBase Reference | 7758-05-6(CAS DataBase Reference) |
| SCOGS (Select Committee on GRAS Substances) | Potassium iodate |
| Substances Added to Food (formerly EAFUS) | POTASSIUM IODATE |
| FDA 21 CFR | 184.1635; 582.80 |
| FDA UNII | I139E44NHL |
| EPA Substance Registry System | Potassium iodate (7758-05-6) |
| UNSPSC Code | 41116107 |
| NACRES | NA.55 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS03,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H272-H315-H319-H335 | |||||||||
| Precautionary statements | P264-P280-P261-P271-P302+P352-P332+P313-P362+P364-P305+P351+P338-P337+P313-P304+P340-P312-P403+P233-P405-P501 | |||||||||
| Hazard Codes | O,Xi,Xn,T | |||||||||
| Risk Statements | 8-36/37/38-22-61-20/21/22 | |||||||||
| Safety Statements | 26-37/39-17-24/25-23-53-45-36/37/39-22 | |||||||||
| RIDADR | UN 1479 5.1/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | NN1350000 | |||||||||
| F | 21 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 5.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 28299080 | |||||||||
| Storage Class | 5.1B - Oxidizing hazardous materials | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Irrit. 2 Ox. Sol. 2 |
|||||||||
| Hazardous Substances Data | 7758-05-6(Hazardous Substances Data) | |||||||||
| REACH Registrations | Active | |||||||||
| Limited Quantities | 1.0 kg (2.2 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
Potassium iodate price More Price(65)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 60386 | Potassium iodate certified reference material for titrimetry, certified by BAM, ≥99.5% | 7758-05-6 | 50g | $353 | 2026-04-30 | Buy |
| Sigma-Aldrich | 207977 | Potassium iodate reagent grade, ≥98% | 7758-05-6 | 100g | $82.6 | 2026-04-30 | Buy |
| Sigma-Aldrich | 207977 | Potassium iodate reagent grade, ≥98% | 7758-05-6 | 500g | $264 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.09917 | Potassium iodate solution for 1000 ml, c(KIO₃) = 1/₆₀ mol/l (0.1 N) Titrisol® | 1 amp | $53.6 | 2026-04-30 | Buy | |
| Sigma-Aldrich | 1.05051 | Potassium iodate for analysis EMSURE? ACS,ISO,Reag. Ph Eur | 7758-05-6 | 100g | $156 | 2026-04-30 | Buy |
Potassium iodate Chemical Properties,Uses,Production
Description
Potassium iodate is an iodine-rich salt with the formula KIO3. In hot and humid climates, iodine vapor is hydrolyzed due to the hygroscopicity of potassium iodide. Compared to potassium iodide, potassium iodate is more stable and has a longer shelf life. It is a potent blocker of radioactive iodine uptake by the thyroid gland.
Chemical Properties
Colorless monoclinic crystal or white crystalline powder. Odorless. Soluble in water, dilute acid, ethylenediamine, ethanolamine, and potassium iodide aqueous solutions; slightly soluble in liquid sulfur dioxide; insoluble in alcohols and ammonia.
Physical properties
Colorless crystals or white powder; monoclinic structure; density 3.90 g/cm3; stable at ordinary temperatures; melts at 560°C with partial decompo-sition, releasing oxygen; moderately soluble in cold water; 4.74 g/100mL at 0°C; greater solubility in boiling water 32.3 g/100mL at 100°C; soluble in potassium iodide solution; insoluble in alcohol and liquid ammonia.
Uses
Potassium Iodate is a source of iodine made by reacting iodine with potassium hydroxide. it is a crystalline powder which is more stable than iodide. it has a solubility of 1 g in 15 ml of water. it is used as a fast-acting dough improver; it is used with potassium bromate as an oxidizing agent to modify the protein in bread flour which pro- motes loaf volume and shape. it is used in baked goods.
Uses
Oxidizer used recently to form 2-styrylchromones from o-hydroxy-ω-cinnamylideneacetophenones by oxidative cyclization.1
Uses
Oxidizing agent in volumetric chemical analysis; as maturing agent and dough conditioner.
Definition
A white solid formed either by adding iodine to a hot concentrated solution of potassium hydroxide or by the electrolysis of potassium iodide solution. No hydrates are known. It is a source of iodide and iodic acid. When treated with a dilute acid and a reducing agent, the iodate ions are reduced to iodine.
Definition
potassium iodate: A white crystallinesolid, KIO3, soluble in waterand insoluble in ethanol; monoclinic;r.d. 3.9; m.p. 560°C. It may be preparedby the reaction of iodine withhot concentrated potassium hydroxideor by careful electrolysis ofpotassium iodide solution. It is anoxidizing agent and is used as ananalytical reagent. Some potassiumiodate is used as a food additive.
Application
Potassium iodate is a fairly strong oxidizing agent that may be used in the assay of a number of pharmaceutical substances, for instance : benzalkonium chloride, cetrimide, hydralazine hydrochloride, potassium iodide, phenylhydrazine hydrochloride, semicarbazide hydrochloride and the like. Under appropriate experimental parameters the iodate reacts quantitatively with both iodides and iodine. It is, however, interesting to observe here that the iodate titrations may be carried out effectively in the presence of saturated organic acids, alcohol and a host of other organic substances.
The oxidation-reduction methods with potassium iodate invariably based on the formation of iodine monochloride (ICl) in a medium of strong hydrochloric acid solution.
Preparation
Potassium iodate can be produced by fusing potassium iodide with potassium chlorate, bromate or perchlorate:
KI + KClO3→KIO3+ KCl
The melt is extracted with water and potassium iodate is isolated from solution by crystallization.
Production Methods
Potassium iodate is formed (1) by electrolysis of potassium iodide under proper conditions, (2) by reaction of iodine and potassium hydroxide solution, and the fractional crystallization of iodate from iodide. Used as a source of iodate and iodic acid.
General Description
KIO3 can be used as a substitute of KI in radiation protection. A kinetic study of thermal degradation of KIO3 by γ-rays suggests that rate of decomposition increases while activation energy decreases upon irradiation.
Flammability and Explosibility
Non flammable
reaction suitability
reaction type: Redox Reactions
Food additive
Iodine can be added to salt in the form of potassium iodide (KI) or potassium iodate (KIO3). Because KIO3 has higher stability in the presence of salt impurities, humidity, and porous packaging, it is the recommended form.
Potassium iodate, which is formed as a secondary product, is reduced by activated carbon. The product is purified by crystallization from water. Alternatively, iron (II) iodide, prepared by using iron powder and iodine, can be treated with potassium carbonate to obtain potassium iodide. High-purity potassium iodide can be prepared by the reaction of a potassium bicarbonate with hydriodic acid.
Safety Profile
Poison by ingestion and intraperitoneal routes. A trace mineral added to animal feeds. Potentially explosive reaction with charcoal + ozone, metals (e.g., powdered aluminum, copper), arsenic carbon, phosphorus, sulfur, alkali metal hydrides, alkaline earth metal hydrides, antimony sulfide, arsenic sulfide, copper sulfide, tin sulfide, metal cyanides, metal thiocyanates, manganese dioxide, phosphorus. Violent reaction with organic matter. When heated to decomposition it emits very toxic fumes of I and K2O. See also IODATES.
Overdosage
Overdose of potassium iodate, an iodized salt used for iodine supplementation in areas endemic for goiter, has been shown to cause profound visual loss and extensive retinal pigmentary abnormalities.78 FA reveals RPE window defects and ERG and VEP testing show marked impairment of retinal function. Visual acuity may improve slowly over several months.
Purification Methods
It has been crystallised twice from distilled water (3mL/g) between 100o and 0o, dried for 2hours at 140o and cooled in a desiccator. Analytical reagent grade material dried in this way is suitable for use as an analytical standard.
Toxics Screening Level
The initial threshold screening level (ITSL) for potassium iodate is 1 μg/m3 based on an annual averaging time.
Potassium iodate Preparation Products And Raw materials
Raw materials
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Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Qingdao Tocean iodine products co. LTD | 18669835223 | tuohaidian@163.com | China | 49 | 58 |
| Nanjing chemical reagent co. LTD | 025-58369808 17895012682 | 3236925839@qq.com | China | 3524 | 58 |
| Jiangsu zhenri Chemical Co., Ltd | 0510-85686299,0510-85686399 400-628-6299 | 2458891188@qq.com | China | 23 | 58 |
| Hubei Changao Pharmaceutical Co., Ltd | 027-87058617 13419515565 | 195755151@qq.com | China | 287 | 58 |
| Liaocheng Jinxinda New Materials Co., Ltd | 18063557833 18006358937 | 2102868595@qq.com | China | 64 | 58 |
| Shandong Xiya Chemical Co., Ltd. | 4009903999 13395398332 | sales@xiyashiji.com | China | 20788 | 60 |
| Shanghai Boyle Chemical Co., Ltd. | 021-50182298 021-50180596 | sales@boylechem.com | China | 2202 | 55 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Beijing dtftchem Technology Co., Ltd. | 010-60275820 13031183356 | elainezt@sina.com | China | 1386 | 62 |
View Lastest Price from Potassium iodate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-21 | Potassium iodate
7758-05-6
|
$45.00-50.00 | 10kg | 99.99% | 100Tons | Hebei Dangtong Import and export Co LTD | |
 |
2026-05-28 | Potassium iodate
7758-05-6
|
$10.00 | 10kg | 99.9% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | Potassium Iodate
7758-05-6
|
$100.00 | 1Kg/Drum | 99%min | 200TON | Hebei Chuanghai Biotechnology Co., Ltd |
-
- Potassium iodate
7758-05-6
- $45.00-50.00
- 99.99%
- Hebei Dangtong Import and export Co LTD
-
- Potassium iodate
7758-05-6
- $10.00
- 99.9%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- Potassium Iodate
7758-05-6
- $100.00
- 99%min
- Hebei Chuanghai Biotechnology Co., Ltd
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