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CAS No.: | 7758-05-6 |
---|---|
Name: | Potassium iodate |
Article Data: | 189 |
Molecular Structure: | |
Formula: | IKO3 |
Molecular Weight: | 214.001 |
Synonyms: | Iodic acid(HIO3), potassium salt (8CI,9CI);Potassium iodine oxide(KIO3); |
EINECS: | 231-831-9 |
Density: | 3.93 g/mL at 25 °C(lit.) |
Melting Point: | 560 °C(lit.) |
Solubility: | Soluble in water, dilute sulphuric acid, potassium iodide solution. Insoluble in ethanol and liquid ammonia |
Appearance: | white crystals or powder |
Hazard Symbols: | O,Xi,Xn,T |
Risk Codes: | 8-36/37/38-61-20/21/22 |
Safety: | 26-17-24/25-23-53-45-36/37/39-22 |
Transport Information: | UN 1479 5.1/PG 2 |
PSA: | 57.20000 |
LogP: | 0.52930 |
Conditions | Yield |
---|---|
With potassium hydroxide In water at 70℃; Electrolysis; | 99.8% |
Conditions | Yield |
---|---|
With potassium hydroxide In water at 70℃; Temperature; Concentration; Electrolysis; | 98.8% |
Conditions | Yield |
---|---|
In melt melting 1 mol KI/ 1.5 mol KClO4;; | 91% |
melting; |
potassium iodate
Conditions | Yield |
---|---|
With potassium iodide molar ratio of KI:KClO4 = 1:1.5; | 91% |
With KI molar ratio of KI:KClO4 = 1:1.5; | 91% |
Conditions | Yield |
---|---|
With oxygen High Pressure; at 410 °C, at 1200 atm., at higher temp. with I2-elimination, 5- 6 h; | 90% |
With O2 High Pressure; at 410 °C, at 1200 atm., at higher temp. with I2-elimination, 5- 6 h; | 90% |
With ozone In ethanol |
Conditions | Yield |
---|---|
With water In water MoO3 and KIO4 were loaded in Parr 4749 PTFE-lined autoclave, water was added, the mixt. was heated for 3 d at 180°C; the autoclave was cooled at a rate of 9°C/h to 23°C, the mother liquors were decanted from crystalline products that were subsequently washed with methanol, the colorless plates of KMoO3(IO3) were sepd.from colorless cubes of KIO3; | A n/a B 90% |
Conditions | Yield |
---|---|
In melt melting 1 mol KI/ 1.5 mol KBrO3;; | 87% |
melting; |
Conditions | Yield |
---|---|
With potassium iodide molar ratio of KI:KBrO3 = 1:1.5; | 87% |
With KI molar ratio of KI:KBrO3 = 1:1.5; | 87% |
With water; iodine byproducts: Br2; first heating, than cooling to cryst. KIO3; | |
With I2; H2O byproducts: Br2; first heating, than cooling to cryst. KIO3; |
oxygen
potassium iodide
A
potassium iodate
B
potassium metaperiodate
Conditions | Yield |
---|---|
In water dissolving 80g KI and 40g KOH in 500ml H2O; 24h at 250°C with O2 pressure of 90 - 100 atm;; product mixture;; | A 82.3% B 25.4% |
In water dissolving 80g KI and 40g KOH in 500ml H2O; 36h at 250°C with O2 pressure of 90 - 100 atm;; product mixture;; | A 82.5% B 24.5% |
In water dissolving 80g KI and 40g KOH in 500ml H2O; 24h at 250°C with O2 pressure of 90 - 100 atm;; product mixture;; | A 82.3% B 25.4% |
Conditions | Yield |
---|---|
In water dissolving 80g KI and 40g KOH in 1000ml H2O; 48h at 250°C with O2 pressure of 90 - 100 atm;; | 76.6% |
In water dissolving 80g KI and 40g KOH in 1000ml H2O; 48h at 250°C with O2 pressure of 90 - 100 atm;; | 76.6% |
In melt melting KOH and KI (3:1) at 400°C in O2-atmosphere at 5-15atm.;; | |
In melt melting KOH and KI (3:1) at 400°C in O2-atmosphere at 5-15atm.;; |
Reported in EPA TSCA Inventory.
Method One: It is obtained from potassium hydroxide and iodine direct reaction.
Method Two: In dilute nitric acid medium, it can be obtained from direct oxidation of potassium chlorate and iodine.
The Potassium iodate, with the CAS registry number 7758-05-6, is also known as Iodic acid potassium salt. It belongs to the product categories of Inorganics; Reagent Grade; Synthetic Reagents; Analytical Reagents for General Use; Titrimetry; Titrimetry CRMs; Alphabetic; Application CRMs; Metal and Ceramic Science; Potassium Salts; Salts; Halogenated Solutions Volumetric Solutions; Salt Solutions; Titration; Volumetric Solutions; ACS Grade Synthetic Reagents; Essential Chemicals; Inorganic Salts; Routine Reagents; Reference Material Sodium thiosulfate Titration; By Reference Material; Materials Science. Its EINECS number is 231-831-9. This chemical's molecular formula is IKO3 and molecular weight is 214.00. What's more, its systematic name is Potassium iodate. Its classification codes are: (1)Anti-Infective Agents; (2)Antifungal agents. Potassium iodate is an oxidizing agent and as such it can cause fires if in contact with combustible materials or reducing agents. Potassium iodate is sometimes used for iodination of table salt. In other countries, potassium iodate is used as source for iodine. It is also an ingredient in baby formula milk. Like potassium bromate, potassium iodate is occasionally used as a maturing agent in baking.
Physical properties of Potassium iodate are: (1)#H bond acceptors: 3; (2)#H bond donors: 1; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 54.37 Å2.
Preparation: it can be prepared by reacting a potassium-containing base such as potassium hydroxide with iodic acid. It can also be prepared by adding iodine to a hot, concentrated solution of potassium hydroxide. Or by fusing potassium iodide with potassium chlorate, bromate or perchlorate, the melt is extracted with water and potassium iodate is isolated from the solution by crystallization.
HIO3 + KOH → KIO3 + H2O
3 I2 + 6 KOH → KIO3 + 5 KI + 3 H2O
KI + KClO3 → KIO3 + KCl
When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When contact with combustible material, it may cause fire, so you should keep it away from combustible material. It is harmful by inhalation, in contact with skin and if swallowed and cause harm to the unborn child. You should not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer) and should not breathe dust. When using it, you need wear suitable protective clothing, gloves and eye/face protection and you must avoid contact with skin and eyes. In case of accident or if you feel unwell, you must seek medical advice immediately (show the label where possible). It should be avoided exposure, and you should obtain special instructions before use.
You can still convert the following datas into molecular structure:
(1)SMILES: [K+].[O-]I(=O)=O
(2)Std. InChI: InChI=1S/HIO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
(3)Std. InChIKey: JLKDVMWYMMLWTI-UHFFFAOYSA-M
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
dog | LDLo | oral | 200mg/kg (200mg/kg) | BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX) BEHAVIORAL: FOOD INTAKE (ANIMAL) | Toxicology and Applied Pharmacology. Vol. 8, Pg. 185, 1966. |
mouse | LD50 | intraperitoneal | 136mg/kg (136mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES BEHAVIORAL: EXCITEMENT | Journal of Pharmacology and Experimental Therapeutics. Vol. 120, Pg. 171, 1957. |
mouse | LDLo | oral | 531mg/kg (531mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: EXCITEMENT GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" | Journal of Pharmacology and Experimental Therapeutics. Vol. 120, Pg. 171, 1957. |