Potassium iodide
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Potassium iodide Chemical properties
Uses
Feed additives
Radiation effects
Solubility in water
Preparation
Identification test
Toxicity
CAS No.
7681-11-0
Chemical Name:
Potassium iodide
Synonyms
I2;KI;K1-N;Pima;LUGOL;IODUM;Jodid;Kisol;IODIDE;Potide
CBNumber:
CB3125298
Molecular Formula:
IK
Formula Weight:
166
MOL File:
7681-11-0.mol
Potassium iodide
Properties
Safety
Price
80
Uses
Suppliers
406
Potassium iodide Properties Melting point:
113 °C(lit.)
Boiling point:
184 °C(lit.)
Density
1.32 g/mL at 25 °C
vapor density
9 (vs air)
vapor pressure
0.31 mm Hg ( 25 °C)
refractive index
1.677
Flash point:
1330°C
storage temp.
Store at RT.
solubility
H2O: 1 M at 20 °C, clear, colorless
form
particles (round)
color
Yellow
PH
6.0-9.0 (25, 1M in H2O)
Water Solubility
1.43 kg/L
Sensitive
Hygroscopic
Merck
14,7643
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.
CAS DataBase Reference
7681-11-0(CAS DataBase Reference)
NIST Chemistry Reference
Potassium iodide(7681-11-0)
EPA Substance Registry System
Potassium iodide (KI)(7681-11-0)
SAFETY
Risk and Safety Statements
Hazard and Precautionary Statements (GHS)
Symbol(GHS):
Signal word:
Danger
Hazard statements:
Code Hazard statements
Hazard class
H302 Harmful if swallowed
Acute toxicity,oral
H315 Causes skin irritation
Skin corrosion/irritation
H319 Causes serious eye irritation
Serious eye damage/eye irritation
H372
Precautionary statements:
Category Category 4 Category 2 Category 2A
Causes damage to organs through prolonged or
Specific target organ toxicity,
Category
repeated exposure
repeated exposure
1
P314
Signal
Pictogram P-Codes
word
P264, P270, P301+P312, P330,
Warning
P501 P264, P280, P302+P352,
Warning
P321,P332+P313, P362 P264, P280,
Warning
P305+P351+P338,P337+P313P
Danger
P260, P264, P270, P314, P501
Get medical advice/attention if you feel unwell.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
Potassium iodide price Manufacturer
Product number
Sigma-Aldrich
03124
Sigma-Aldrich
More Price(80)
Product description
CAS number
Packaging
Price
Updated
Buy
Potassium iodide 99.0-100.5% (calc. to the dried substance)
7681-11-0
6x1kg
$1200
2017-11-08
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03124
Potassium iodide 99.0-100.5% (calc. to the dried substance)
7681-11-0
1kg
$283
2017-11-08
Buy
Alfa Aesar
10842
Potassium iodide, Puratronic?, 99.998% (metals basis)
7681-11-0
5g
$53.5
2017-11-08
Buy
Alfa Aesar
10842
Potassium iodide, Puratronic?, 99.998% (metals basis)
7681-11-0
25g
$155
2017-11-08
Buy
Strem Chemicals
19-3200
Potassium iodide, 99+% (ACS)
7681-11-0
100g
$40
2017-11-27
Buy
Potassium iodide Chemical Properties,Uses,Production Chemical properties Colorless or white cubic crystals or granules; becomes yellowish when exposed to bright light due to photochemical decomposition liberating traces of free iodine; density 3.13 g/cm3; melts at 681°C; vaporizes at 1,330°C; highly soluble in water, ~140 g/100mL at 20°C; aqueous solution readily dissolves iodine; sparingly soluble in ethanol (about 2 g/100mL at 25°C) and acetone; slightly soluble in ether and ammonia.
Uses Industry
Application
Role/benefit
Dietary supplement
Animal feeds and human diet
Iodine fortifier/source of iodine
Goiter
Goiter control agent/source of iodine
Long-term lung problems
Expectorant/helps you cough up the mucus so you can breathe more easily
Thyroid protection during nuclear or radiological emergencies
Blocks thyroid from absorbing radioactive iodine
Chemical analysis
Chromatographic analysis and spot analysis
Analytical reagent/easily be reduced to iodine
Chemical manufacture
Manufacture of iodine compounds and dyes
Raw material
Film photography
Preparation of silver iodide (AgI)
Raw material/react with silver nitrate to make silver iodide (AgI)
Biomedical research
Quenching of fluorescence
Fluorescence quenching agent/ iodide ion induces the collisional quenching of fluorescent substances
Organic synthesis
Preparation of aryl iodides
Iodizating agent
Dye sensitised solar cells
Component in the electrolyte
Dissolution of iodine and refractory metal iodide
Cosolvent
Medicine
Others
Feed additives 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. Iodine is ingredient of thyroxine, it is closely related to basal metabolism livestock, it participates in almost all the metabolism process, livestock iodine deficiency can cause thyroid hypertrophy, basal metabolic rate dropps, and affects growth and development. Young animals and animal feed of iodine deficiency area need add iodine, iodine requirements of high producing dairy cows, yield hens should increase, the feed also need to add iodine. Iodine of milk and egg increases with dietary iodine. According to reports, periodate eggs can reduce cholesterol levels and good for the health of patients with hypertension. In addition, during the fattening of animals, though not iodine deficiency, in order to make livestock hypothyroidism strong, enhanced anti-stress, maintain the highest production capacity, iodide is also added, potassium iodide as the iodine source is added to feed, it can prevent iodine deficiency disorders, promote growth, increase egg production rate and reproduction rate and improve feed efficiency, the amount of feed is generally a few PPM, because of its instability, iron citrate and calcium stearate (generally 10%) is usually added as protective agent to make it stable.
Radiation effects Various countries aim at surrounding residents of nuclear power plants to provide or reserves iodine tablets, the main ingredient is potassium iodide, when nuclear power plant occurs disaster and radiation leaks, the surrounding residents should take iodine tablets, iodine can saturate the thyroid gland and reduce absorption of radioactive iodine-131. When suffers the free iodine radiation exposure, within four hours can take effect, but it can not prevent ionizing radiation of iodine-131 exceptant and isotope. Improper use may cause hyperthyroidism symptoms without instructions for most people.
Solubility in water Grams which dissolves in per 100 ml of water at different temperatures (): 128g/0 ; 136g/10 ; 144g/20 ; 153g/30 ; 162g/40 ; 168g/50 176g/60 ; 192g/80 ; 198g/90 ; 206g/100
Preparation Potassium iodide is made by absorption of iodine in potassium hydroxide: POTASSIUM IODIDE 7613I2 + 6KOH Õ 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 Õ 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 Õ 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 Õ KI + CO2 + H2O It is purified by melting in dry hydrogen. Potassium iodide also may be obtained by various electrolytic processes.
Identification test 10% of the sample liquid potassium test (IT-27) and iodide test (IT-18), it is positive.
Toxicity GRAS (FDA, §184.1634,2000). Toxicity 1: See iodine. Toxicity 2: It is generally recognized as safe (US Food and Drug Administration, 1985). The edible salt is in the amount of 0.01% or less.
Uses 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.
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.
Potassium iodide Preparation Products And Raw materials Raw materials Iodine Iodine
FERROUS CARBONATE Hydriodic acid
Potassium hydroxide
Carbon Black
IRON (II) IODIDE
Potassium carbonate
Potassium hydroxide solution
Potassium iodate
Preparation Products N-(2-Hydroxyethyl)-N-methylaniline 1-(CYCLOHEXYLMETHYL)PIPERAZINE IODOCYCLOHEXANE 1-Cyclohexylpiperazine 3-CYCLOPENTYLOXY-4METHOXYBENZALDEHYDE MERCURY(II) IODIDE NESSLER'S REAGENT Cefpirome Propacetamol 2,4,6-Triiodoresorcinol Allylthiourea Oxatomide 4BENZYLOXY-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 4Iodopyridine 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 4Iodophenoxyacetic acid Phenylarsine oxide N-(4-iodobenzoyl)-L-glutamic acid
Potassium iodide Suppliers Global( 406)Suppliers Belgium 1 Supplier
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Shenzhen Sendi Biotechnology Co.Ltd.
Henan Tianfu Chemical Co.,Ltd.
Shanghai Time Chemicals CO., Ltd.
Mainchem Co., Ltd.
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7681-11-0(Potassium iodide)Related Search: Cuprous iodide Potassium iodate Potassium persulfate Potassium chloride ALKALINE IODIDE GRAM STAIN NO 2,IODINE AND POTASSIUM IODIDE TS,IODINE AND POTASSIUM IODIDE,IODINE POTASSIUM IODIDE SOLUTION,IODINE POTASSIUM IODIDE,GRAM STAIN SILVER POTASSIUM IODIDE, 99.99%,SILVER POTASSIUM IODIDE SODIUM THIOSULPHATE/IODINE K BISMUTH POTASSIUM IODIDE Mercury(II) chloride - potassium iodide solution,MERCURIC POTASSIUM IODIDE REAGENT,MERCURIC POTASSIUM IODIDE,MERCURIC-POTASSIUM IODIDE TS, ALKALINE,MERCURIC-POTASSIUM IODIDE TS,MERCURY(II) POTASSIUM IODIDE,Mercury potassium iodide POTASSIUM IODIDE WITH TIXOSIL POTASSIUM IODIDE WITH CA STEARATE,POTASSIUM IODIDE WITH CALCIUM STEARATE POTASSIUM IODIDE-IODATE,POTASSIUM IODIDE-IODATE STANDARD,POTASSIUM IODIDE/IODATE REAGENT Potassium iodide Potassium sulfate Potassium POTASSIUM CYANIDE GRAM STAIN
Analytical Chromatography Product Catalog IODINE, ELEMENTAL IODINE STANDARD
asmofuge
IODINE, SUBLIMED
IODINE TINCTURE
LUGOL
component of Mudrane tablets
Hydriodic acid potassium salt
TITRANT 5
Potassium iodide (K2I2)
Jodid
joptone
IODINE-IODINE
IODINE, IODOPHOR
OXIDIZING SOLUTION
component of Mudrane-2 tablets
ioduredepotassium
LUGOL'S SOLUTION
IODINE TINCTURE STRONG
IODINE VOLUMETRIC STANDARD
HANUS IODINE SOLUTION
Potassium iodide (K(I2))
7681-11-0
IODIDE, ION CHROMATOGRAPHY STANDARD SOLUTION
IODINE VOLUMETRIC SOLUTION GRAM STAIN
Analytical Reagents
K1-N
Potassium iodide (KI)
Iodination
IODINE SOLUTION
IODINE SOLUTION, GRAM
IODINE, TOPICAL SOLUTION Synthetic Reagents Dipotassium diiodide
kaliiodide
Potassium monoiodide
IODIDE IC STANDARD
IODOPHOR I-2000S
component of Quadrinal Kali iodide
IODIDE
KI
Kisol
potassiumdiiodide
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IODOPHOR I-500S
IODUM
C-X Bond Formation (Halogen) dipotassiumdiiodide
Knollide
Pima
I2 Asmofug E
Embamix
Potassium diiodide
potassiumiodide(ki)
potassiumiodide[k(i2)]
