ChemicalBook > CAS DataBase List > Potassium iodate

Potassium iodate

Product Name
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
Formula Weight
214
MOL File
7758-05-6.mol
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Potassium iodate Property

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
Odor
at 100.00?%. odorless
PH
6 (50g/l, H2O, 20℃)
Water Solubility 
Soluble
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.
InChIKey
JLKDVMWYMMLWTI-UHFFFAOYSA-M
LogP
-1 at 25℃
CAS DataBase Reference
7758-05-6(CAS DataBase Reference)
EPA Substance Registry System
Potassium iodate (7758-05-6)
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Safety

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 
Yes
HazardClass 
5.1
PackingGroup 
II
HS Code 
28299080
Hazardous Substances Data
7758-05-6(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H272May intensify fire; oxidizer

H302Harmful if swallowed

H318Causes serious eye damage

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P220Keep/Store away from clothing/…/combustible materials.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
60386
Product name
Potassium iodate
Purity
certified reference material for titrimetry, certified by BAM, ≥99.5%
Packaging
50g
Price
$304
Updated
2024/03/01
Sigma-Aldrich
Product number
207977
Product name
Potassium iodate
Purity
reagent grade, ≥98%
Packaging
100g
Price
$74.5
Updated
2024/03/01
Sigma-Aldrich
Product number
207977
Product name
Potassium iodate
Purity
reagent grade, ≥98%
Packaging
500g
Price
$239
Updated
2024/03/01
Sigma-Aldrich
Product number
1.05051
Product name
Potassium iodate
Purity
for analysis EMSURE? ACS,ISO,Reag. Ph Eur
Packaging
100g
Price
$141
Updated
2024/03/01
Sigma-Aldrich
Product number
1.05051
Product name
Potassium iodate
Purity
for analysis EMSURE? ACS,ISO,Reag. Ph Eur
Packaging
500g
Price
$306
Updated
2024/03/01
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Potassium iodate Chemical Properties,Usage,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

iodine Potassium hydroxide Iodine Nitric acid Potassium chlorate POTASSIUM BIIODATE

Preparation Products

potassmm iodate for food Potassium iodide Sodium chloride Calcium iodate
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View Lastest Price from Potassium iodate manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Potassium Iodate 7758-05-6
Price
US $100.00/Kg/Drum
Min. Order
1Kg/Drum
Purity
99%min
Supply Ability
200TON
Release date
2024-10-31
Wuhan Quanjinci New Material Co.,Ltd.
Product
Potassium iodate 7758-05-6
Price
US $380.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
1000000tons
Release date
2023-11-02
Hebei Chuanghai Biotechnology Co,.LTD
Product
Potassium iodate 7758-05-6
Price
US $10.00/kg
Min. Order
10kg
Purity
99.9%
Supply Ability
10000kg
Release date
2024-08-20

7758-05-6, Potassium iodate Related Search:

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