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Merck
CN

30315-M

碘化钾

puriss. p.a., reag. ISO, reag. Ph. Eur., ≥99.0%

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线性分子式:
KI
化学文摘社编号:
7681-11-0
分子量:
166.00
NACRES:
NA.21
PubChem Substance ID:
329753460
UNSPSC Code:
12352302
EC Number:
231-659-4
MDL number:
MFCD00011405
Assay:
≥99.0%, 99.0-100.5% (calc. to the dried substance)
Form:
crystalline
Solubility:
water: complete (ca.1,430 g/l at 25 °C (77 °F))

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InChI key

NLKNQRATVPKPDG-UHFFFAOYSA-M

InChI

1S/HI.K/h1H;/q;+1/p-1

agency

reag. ISO, reag. Ph. Eur.

vapor pressure

1 mmHg ( 745 °C)

grade

puriss. p.a.

assay

≥99.0%, 99.0-100.5% (calc. to the dried substance)

form

crystalline

impurities

Reducing substances, complies, ≤0.0005% heavy metals (as Pb), ≤0.005% thiosulfate (S2O3), ≤0.02% free alkali (as KOH), ≤10 ppm total nitrogen (N)

loss

≤0.2% loss on drying, 105 °C

pH

6-8 (20 °C, 5%)

mp

681 °C (lit.)

solubility

water: complete (ca.1,430 g/l at 25 °C (77 °F))

anion traces

bromide, chloride (as Cl-): ≤100 ppm, iodate (IO3-): ≤2 ppm, phosphate (PO43-): ≤10 ppm, sulfate (SO42-): ≤10 ppm

cation traces

As: ≤0.00001%, Ba: ≤0.002%, Ca: ≤0.001%, Fe: ≤0.0003%, Mg: ≤0.001%, Na: ≤0.03%

Quality Level

100

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General description

Potassium iodide (KI) is an inorganic potassium salt. It is used as an iodide ion source for nucleophilic displacement reactions and acts as a mediator during the electrochemical oxidations of aldehydes. In presence of an acid, KI cleaves some ethers. KI reacts with sulfonyl chlorides to produce symmetrical thiosulfonic S-esters. In the presence of oxidizing agents, KI iodinates aromatic compounds and organothallium compounds.

Application

Potassium iodide is used:
  • As a solid base catalyst loaded with alumina for transesterification of soybean oil with methanol.
  • As a iodide source in the solvothermal synthesis of BiOI (bismuth oxyiodide) microspheres using ethylene glycol solvent.
  • In the synthesis of RGO (reduced graphene oxide) from GO (graphite oxide) in presence of HCl–KI mixture.

signalword

Danger

target_organs

Thyroid

存储类别

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

flash_point_f

Not applicable

flash_point_c

Not applicable

pictograms

Health hazardExclamation mark
GHS08,GHS07

Hazard Classifications

Eye Irrit. 2 - Repr. 1B - STOT RE 2

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SDBB2828
BCCN7664
BCCN7663
BCCN6781
BCCN6780

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Y Miyachi et al.
The British journal of dermatology, 107(2), 209-214 (1982-08-01)
The effects of potassium iodide, colchicine and dapsone on the in vitro generation of polymorphonuclear leukocyte (PMN)-derived oxygen intermediates were investigated. These three drugs have beneficial effects on those conditions in which PMNs play an important pathogenetic role. Three oxygen
H B Li et al.
Journal of chromatography. A, 918(2), 335-339 (2001-06-16)
A novel method for the determination of iodide by size exclusion chromatography was established. The method was simple and highly sensitive with good precision. Iodide was converted to iodine, then sequestered with starch, and separated from the matrix using a
V Witko-Sarsat et al.
Journal of immunology (Baltimore, Md. : 1950), 161(5), 2524-2532 (1998-09-02)
We previously demonstrated the presence of advanced oxidation protein products (AOPP), a novel marker of oxidative stress in the plasma of uremic patients receiving maintenance dialysis. The present study in a cohort of 162 uremic patients showed that plasma concentrations

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