Potassium iodide

Potassium iodide Properties

Melting point	681 °C (lit.)
Boiling point	184 °C(lit.)
Density	1.7 g/cm3
vapor density	9 (vs air)
vapor pressure	0.31 mm Hg ( 25 °C)
refractive index	1.677
Flash point	1330°C
storage temp.	2-8°C
solubility	H₂O: 1 M at 20 °C, clear, colorless
form	particles (round)
pka	0.06[at 20 ℃]
Specific Gravity	3.13
color	Yellow
PH	6.0-9.0 (25℃, 1M in H2O)
Odor	odorless
Water Solubility	1.43 kg/L
Sensitive	Hygroscopic
Merck	14,7643
Dielectric constant	5.1200000000000001
Exposure limits	ACGIH: TWA 0.01 ppm
BCS Class	1
Stability	Stable. Protect from light and moisture. Incompatible with strong reducing agents, strong acids, steel, aluminium, alkali metals, brass, magnesium, zinc, cadmium, copper, tin, nickel and their alloys.
InChIKey	NLKNQRATVPKPDG-UHFFFAOYSA-M
LogP	-0.958 at 25℃
FDA 21 CFR	172.375; 184.1634; 582.5634; 310.503; 310.545; 558.258; 582.80
Substances Added to Food (formerly EAFUS)	POTASSIUM IODIDE
SCOGS (Select Committee on GRAS Substances)	Potassium iodide
CAS DataBase Reference	7681-11-0(CAS DataBase Reference)
EWG's Food Scores	2
FDA UNII	1C4QK22F9J
ATC code	R05CA02,S01XA04,V03AB21
NIST Chemistry Reference	Potassium iodide(7681-11-0)
EPA Substance Registry System	Potassium iodide (7681-11-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319

Precautionary statements

Hazard Codes

Risk Statements

Safety Statements

WGK Germany

1

RTECS

TT2975000

F

10

TSCA

Yes

HS Code

28276000

Toxicity

Approx LD i.v. in rats: 285 mg/kg (Hildebrandt)

NFPA 704

	0
1		0

Potassium iodide price More Price(145)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	PX1507	Potassium iodide granular, Meets ACS Specifications GR ACS	7681-11-0	125g	$76.2	2024-03-01	Buy
Sigma-Aldrich	PX1507	Potassium iodide granular, Meets ACS Specifications GR ACS	7681-11-0	500g	$244	2024-03-01	Buy
Sigma-Aldrich	SAB2500833	Anti-PSME3 antibody produced in goat affinity isolated antibody, buffered aqueous solution	7681-11-0	100μG	$568	2024-03-01	Buy
Sigma-Aldrich	PX1507	Potassium iodide granular, Meets ACS Specifications GR ACS	7681-11-0	2.5kg	$778	2024-03-01	Buy
Sigma-Aldrich	PX1507	Potassium iodide granular, Meets ACS Specifications GR ACS	7681-11-0	12kg	$3410	2024-03-01	Buy

Product number	Packaging	Price	Buy
PX1507	125g	$76.2	Buy
PX1507	500g	$244	Buy
SAB2500833	100μG	$568	Buy
PX1507	2.5kg	$778	Buy
PX1507	12kg	$3410	Buy

Potassium iodide Chemical Properties,Uses,Production

Chemical Properties

Potassium iodide is a white crystals, granules, or powder; strong, bitter, saline taste. becomes yellowish when exposed to bright light due to photochemical decomposition liberating traces of free iodine. Soluble in water, alcohol, acetone, and glycerol. slightly soluble in ether and ammonia. It may be prepared bythe reaction of iodine with hot potassiumhydroxide solution followed by separation from the iodate (which isalso formed) by fractional crystallization. In solution it has the interestingproperty of dissolving iodine to formthe triiodide ion I3-, which is brown. Potassium iodide is widely used as ananalytical reagent, in photography,and also as an additive to table salt toprevent goitre and other disordersdue to iodine deficiency.
Potassium iodide powder

Occurrence

Potassium iodide is found in seaweed. Some important applications of this compound involve its use in pharmaceuticals and as a source of iodine in food,especially in animal and poultry feed. Potassium iodide is added to table salt to provide iodine in human food.
Another major use is in making photographic emulsions. In analytical chemistry, potassium iodide is used in iodometric titration with starch indicator to analyze dissolved oxygen, dissolved chlorine, sulfide, and other analytes in water.

Uses

Potassium Iodide is a source of iodine and a nutrient and dietary supplement. it exists as crystals or powder and has a solubility of 1 g in 0.7 ml of water at 25°c. it is included in table salt for the preven- tion of goiter.Potassium Iodide is used primarily used in the treatment of radiation poisoning due to environmental contamination by iodine-131. It is also manufacture of photographic emulsions; in animal and poultry feeds to the extent of 10-30 parts per million; in table salt as a source of iodine and in some drinking water; also In animal chemistry. In medicine,potassium iodide is used to regulate the thyroid gland.

Application

Potassium iodide was first used as the primary halide in Talbot’s calotype process, then in the albumen on glass process followed by the wet collodion process. It was also used as a secondary halide in silver bromide gelatin emulsions, animal feeds, catalysts, photographic chemicals, and for sanitation. Potassium iodide is produced by reaction of potassium hydroxide with iodine. The product is purified by crystallization from water. Potassium iodide is ionic compound which iodine ions and silver ions can form yellow precipitate silver iodide (when exposes to light, it can decompose, it can be used to make high-speed photographic film), silver nitrate can be used to verify the presence of iodine ions.

Preparation

Potassium iodide is made by absorption of iodine in potassium hydroxide:
I2 + 6KOH → 5KI + KIO3 + 3H2O
Most potassium iodate, KIO3 , is separated from the product mixture by crystallization and filtration. Remaining iodates are removed by evaporation of the solution and other processes, such as carbon reduction or thermal decompostion at 600oC to iodide:
2KIO3 → 2KI + 3O2
Another method of preparation that does not involve the formation of iodate is by treating iron turnings with iodine solution. The product, ferrosoferric iodide, Fe3I8?16H2O, is boiled with 15 wt% potassium carbonate solution:
Fe3I8.16H2O + 4K2CO3 → 8 KI + 4CO2 + Fe3O4 + 16H2O
A similar method is used to prepare potassium bromide, discussed earlier (see Potassium Bromide.)
Potassium iodide can be prepared by reacting hydriodic acid with potassium bicarbonate:
HI + KHCO3 → KI + CO2 + H2O
It is purified by melting in dry hydrogen.
Potassium iodide also may be obtained by various electrolytic processes.

Definition

ChEBI: Potassium iodide is a metal iodide salt with a K(+) counterion. A compound that contains pentavalent iodine, which is usually ionically bound to electropositive atoms. It is a scavenger of hydroxyl radicals. It has a role as a radical scavenger and an expectorant. It contains an iodide. It is a type of iodine that is not radioactive and can be used to help block one type of radioactive material, radioactive iodine (I-131), from being absorbed by the thyroid.

brand name

Iosat (Anbex); Thyro-Block (Medpointe); Thyrosafe (R R Registrations); Thyroshield (Fleming).

General Description

Potassium iodide is an odorless white solid. Sinks and mixes with water. (USCG, 1999)

Air & Water Reactions

Water soluble.

Reactivity Profile

Bromine trifluoride rapidly attacks the following salts: barium chloride, cadmium chloride, calcium chloride, cesium chloride, lithium chloride, silver chloride, rubidium chloride, potassium bromide, potassium chloride, Potassium iodide, rhodium tetrabromide, sodium bromide, sodium chloride, and sodium iodide [Mellor 2, Supp. 1:164, 165. 1956].

Health Hazard

May irritate eyes or open cuts.

Pharmacokinetics

Potassium Iodide is a metal halide composed of potassium and iodide with thyroid protecting and expectorant properties. Potassium iodide can block absorption of radioactive iodine by the thyroid gland through flooding the thyroid with non-radioactive iodine and preventing intake of radioactive molecules, thereby protecting the thyroid from cancer causing radiation. In addition, this agent acts as an expectorant by increasing secretion of respiratory fluids resulting in decreased mucus viscosity.

Clinical Use

Potassium iodide is used to treat the cutaneous lymphatic form of sporotrichosis, although newer agents are also effective in this disorder and may be better tolerated tolerated. The drug is also used for erythema nodosum and nodular vasculitis.

Safety Profile

Poison by intravenous route. Moderately toxic by ingestion and intraperitoneal routes. Human teratogenic effects by ingestion: developmental abnormalities of the endocrine system. Experimental teratogenic and reproductive effects. Mutation data reported. Explosive reaction with charcoal + ozone, trifluoroacetyl hypofluorite, fluorine perchlorate. Violent reaction or ignition on contact with dazonium salts, diisopropyl peroxydicarbonate, bromine pentafluoride, chlorine trifluoride. Incompatible with oxidants, BrF3, FClO, metaltic salts, calomel. When heated to decomposition it emits very toxic fumes of K2O and I-. See also IODIDES.

Purification Methods

Crystallise it from distilled water (0.5mL/g) by filtering the near-boiling solution and cooling. To minimise oxidation to iodine, the process can be carried out under N2 and the salt is dried under a vacuum over P2O5 at 70-100o. Before drying, the crystals can be washed with EtOH or with acetone followed by pet ether. It has also been recrystallised from water/ethanol. After 2 recrystallisations, ACS/USP grade had Li and Sb at <0.02 and <0.01 ppm respectively. [Lingane & Kolthoff Inorg Synth I 163 1939.]

Potassium iodide Preparation Products And Raw materials

Raw materials

iodine FERROUS CARBONATE Iron filings Potassium hydroxide Carbon Black

IRON (II) IODIDE Potassium carbonate Potassium hydroxide solution Potassium iodate Iodate

Additive B Iodine Hydriodic acid

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Preparation Products

N-(2-Hydroxyethyl)-N-methylaniline 1-(CYCLOHEXYLMETHYL)PIPERAZINE IODOCYCLOHEXANE 1-Cyclohexylpiperazine 3-CYCLOPENTYLOXY-4-METHOXYBENZALDEHYDE

MERCURY(II) IODIDE NESSLER'S REAGENT Cefpirome Propacetamol 2,4,6-Triiodoresorcinol

Allylthiourea Oxatomide 4-BENZYLOXY-3-METHOXYBENZALDEHYDE 3-(4-OXO-6-PHENYL-1,4-DIHYDRO-PYRIMIDIN-2-YLSULFANYL)-PROPIONIC ACID 4'-Iodoacetophenone

Silver iodide 5-IODOINDOLE Mercury iodide 3-Benzyloxybenzaldehyde 4-FLUORO-2-NITROPHENYLBORONIC ACID

2-CHLORO-5-IODO-3-METHYLPYRIDINE Ganciclovir 3-BROMO-5-IODOBENZOIC ACID Dimethyl acetylmethylphosphonate PYRIDINE-2-CARBOXALDOXIME METHIODIDE

Lonidamine Carboplatin 4-Iodopyridine 1-(3-Aminopropyl)piperidine 2,5-DIMETHYL-3-FUROIC ACID

3-CHLORO-4-IODONITROBENZENE 1-Iodonaphthalene 2-PHENOXYACETAMIDINE HYDROCHLORIDE 1-(3,4-Dichlorophenyl)piperazine 4-(3-MORPHOLINOPROPOXY)-3,5-DICHLOROBENZENAMINE

3-Iodopyridine Risperidone 4-Iodophenoxyacetic acid Phenylarsine oxide N-(4-iodobenzoyl)-L-glutamic acid

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Potassium iodide Suppliers

Global( 1286)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Xiamen AmoyChem Co., Ltd	+86-592-6051114 +8618959220845	sales@amoychem.com	China	6387	58
Hebei Guanlang Biotechnology Co., Ltd.	+86-19930503282	alice@crovellbio.com	China	8823	58
Henan Alfa Chemical Co., Ltd	+8618339805032	alfa4@alfachem.cn	China	12755	58
Hebei Guanlang Biotechnology Co,.LTD	+8619930503252	daisy@crovellbio.com	China	5964	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7786	58
Shanghai Affida new material science and technology center	+undefined15081010295	2691956269@qq.com	China	359	58
Kindchem(Nanjing)Co.,Ltd	+86-025-025-85281586 +8618651653755	sales@kindchem.cn	China	1227	58
Hebei Dangtong Import and export Co LTD	+8615632927689	admin@hbdangtong.com	China	991	58
Hebei Jingbo New Material Technology Co., Ltd	+8619931165850	hbjbtech@163.com	China	1000	58
Wuhan Ruichi Technology Co., Ltd	+8613545065237	admin@whrchem.com	China	164	58

Supplier	Advantage
Xiamen AmoyChem Co., Ltd	58
Hebei Guanlang Biotechnology Co., Ltd.	58
Henan Alfa Chemical Co., Ltd	58
Hebei Guanlang Biotechnology Co,.LTD	58
Henan Fengda Chemical Co., Ltd	58
Shanghai Affida new material science and technology center	58
Kindchem(Nanjing)Co.,Ltd	58
Hebei Dangtong Import and export Co LTD	58
Hebei Jingbo New Material Technology Co., Ltd	58
Wuhan Ruichi Technology Co., Ltd	58

View Lastest Price from Potassium iodide manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-04-25	Potassium iodide 7681-11-0	US $0.00-0.00 / kg	1kg	99	10 tons	Shanghai Affida new material science and technology center
2024-04-25	Potassium iodide 7681-11-0	US $5.00 / kg	1kg	99.92%	50000tons	Ouhuang Engineering Materials (Hubei) Co., Ltd
2024-04-25	Potassium iodide 7681-11-0	US $0.00 / Kg/Drum	1KG	≥99%	500mt	Jinan Finer Chemical Co., Ltd

Potassium iodide
7681-11-0
US $0.00-0.00 / kg
99
Shanghai Affida new material science and technology center

Potassium iodide
7681-11-0
US $5.00 / kg
99.92%
Ouhuang Engineering Materials (Hubei) Co., Ltd

Potassium iodide
7681-11-0
US $0.00 / Kg/Drum
≥99%
Jinan Finer Chemical Co., Ltd

Potassium iodide Spectrum

Potassium iodide(7681-11-0)IR1

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