204102

Potassium iodide

≥99.99% trace metals basis

• Synonym(s): Knollide, Potassium monoiodide
• Linear Formula: KI
• CAS Number: 7681-11-0
• Molecular Weight: 166.00
• EC Number: 231-659-4
• MDL number: MFCD00011405
• PubChem Substance ID: 24852091
• NACRES: NA.23

Properties

• vapor pressure: 1 mmHg ( 745 °C)
• Quality Level: 200
• assay: ≥99.99% trace metals basis
• form: crystals and lumps
• impurities: ≤100.0 ppm Trace Metal Analysis
• mp: 681 °C (lit.)
• SMILES string: [K+].[I-]
• InChI: 1S/HI.K/h1H;/q;+1/p-1
• InChI key: NLKNQRATVPKPDG-UHFFFAOYSA-M

Description

General description

Potassium iodide is widely used as an additive to fabricate perovskite solar cells and light-emitting diodes, to enhance their stability and performance. The excess I⁻ from KI fill in the I⁻vacancies and suppress potential pathways for ion migration. The K⁺ cations can bond with undercoordinated halides or passivate negatively charged trap states at the grain surface, which enhances the performance of the device. It can also be used as a catalyst in various reactions such as the synthesis of biodiesel and cyclic carbonates with five-membered rings.

Packaging

10, 50, 250 g in poly bottle

Safety Information

• Pictograms: GHS08
• Signal Word: Danger
• Hazard Statements: H372
• Precautionary Statements: P260 - P264 - P270 - P314 - P501
• Hazard Classifications: STOT RE 1 Oral
• Target Organs: Thyroid
• Storage Class Code: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves