Potassium iodate
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Potassium iodate
structure -
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CAS No:
7758-05-6
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Formula:
IKO3
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Chemical Name:
Potassium iodate
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Synonyms:
POTASSIUM IODATE VOLUMETRIC STANDARD, SE;POTASSIUM IODATE FOR ANALYSIS EMSURE;PotassiuM iodate, ACS reagent;PotassiuM iodate, 1/60 M solution in H2O;PotassiuM iodate 99.995% trace Metals basis;Potassium iodate ACS reagent, 99.5%;Potassium iodate puriss. p.a., 99.7-100.4%;Potassium iodate reagent grade, >=98%
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Categories:
Active Pharmaceutical Ingredients > Hormones and the Endocrine System
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CAS No:
Description
white crystals or powder
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.
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.
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.
KIO3can be used as a substitute of KI in radiation protection. A kinetic study of thermal degradation of KIO3by γ-rays suggests that rate of decomposition increases while activation energy decreases upon irradiation.
Characteristics
57.20000
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.
0.52930
white
3.93 g/mL at 25 °C(lit.)
560 °C(lit.)
Soluble
Keep away from heat, sparks, and flame. Do not store near combustible materials. Store in a cool, dry, well-ventilated area away
0-0Pa at 25℃
Non flammable
at 100.00%. odorless
6 (50g/l, H2O, 20℃)
0.047[at 20 ℃]
Store at +5°C to +30°C.
Safety Information
II
5.1
UN 1479
3
O,Xi,Xn,T
26-37/39-17-24/25-23-53-45-36/37/39-22
NN1350000
O; Xn
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.
P220-P261-P305 + P351 + P338
8-36/37/38-22-61-20/21/22
UN 1479 5.1/PG 2
Potassium iodate Use and Manufacturing
Potassium iodate (KIO3) is a chemical compound. It is ionic, made up of K+ ions and IO3− ions in a 1:1 ratio.
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.
Oxidizer used recently to form 2-styrylchromones from o-hydroxy-ω-cinnamylideneacetophenones by oxidative cyclization.1
Oxidizing agent in volumetric chemical analysis; as maturing agent and dough conditioner.
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.
Drug Function and Efficacy
Participates in the formation of thyroid hormone. Animal experimental research results show that it has a certain effect on brain cell development disorders caused by iodine deficiency.
Registered Holders
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Chongqing Unger Dragon Pharmaceutical Co., Ltd.
Active
China
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Zigong Honghe Pharmacy Co., Ltd.
Active
China
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Sichuan Jianneng Pharmaceutical Co., Ltd.
Active
China
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