30315

Potassium iodide

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

• Linear Formula: KI
• CAS Number: 7681-11-0
• Molecular Weight: 166.00
• EC Number: 231-659-4
• MDL number: MFCD00011405
• UNSPSC 코드: 12352302
• PubChem Substance ID: 329753460
• NACRES: NA.21

속성

• Agency: USP/NF; reag. ISO; reag. Ph. Eur.
• vapor pressure: 1 mmHg ( 745 °C)
• 설명: REDUCING SUBSTANCES complying
• grade: puriss. p.a.
• 분석: ≥99.0%; 99.0-100.5% (calc. to the dried substance)
• 형태: solid
• 불순물: ≤0.0005% heavy metals (as Pb); ≤0.001% total nitrogen (N); ≤0.005% thiosulfate (S₂O₃); ≤0.02% free alkali (as KOH)
• 손실: ≤0.5% loss on drying, 105 °C
• pH: 6.0-8.0 (20 °C, 5%)
• mp: 681 °C (lit.)
• 음이온 미량물: bromide, chloride (as Cl^-): ≤100 mg/kg; iodate (IO₃^-): ≤2 mg/kg; phosphate (PO₄^3-): ≤10 mg/kg; sulfate (SO₄^2-): ≤10 mg/kg
• 양이온 미량물: As: ≤0.1 mg/kg; Ba: ≤20 mg/kg; Ca: ≤10 mg/kg; Fe: ≤3 mg/kg; Mg: ≤10 mg/kg; Na: ≤300 mg/kg
• SMILES string: [K+].[I-]
• InChI: 1S/HI.K/h1H;/q;+1/p-1
• InChI key: NLKNQRATVPKPDG-UHFFFAOYSA-M

설명

일반 설명

Potassium iodide (KI) is a chemical compound that can be used as an iodide ion source for nucleophilic displacement reactions. During the electrochemical oxidation of aldehydes, it acts as a mediator. In the presence of an acid, it can cleave some ethers. KI can iodinate aromatic and organothallium compounds in the presence of an oxidizing agent. Additionally, it can form symmetrical thiosulfonic S-esters by reacting with sulfonyl chlorides.

애플리케이션

Potassium iodide is used as:

• An iodine source in the synthesis of 1-iodoalkynes and iodophenols from alkynes and phenols using tert-butyl hydroperoxide (TBHP) as oxidant.
• A catalyst in the synthesis of sulfonated oxindoles by arylsulfonylation of activated alkenes using sulfonylhydrazides as sulfonyl precursor, and water as solvent.
• An oxidative degradation inhibitor to reduces oxidative degradation of monoethanolamine (MEA).

안전성 정보

• 픽토그램: GHS08
• 신호어: Danger
• 유해 및 위험 성명서: H372
• 예방조치 성명서: P260 - P264 - P270 - P314 - P501
• Hazard Classifications: STOT RE 1 Oral
• 표적 기관: Thyroid
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable