1.04994

Potassium fluoride

for analysis EMSURE^® ACS

• Sinónimos: Potassium fluoride
• Fórmula empírica (notación de Hill): FK
• Número CAS: 7789-23-3
• Peso molecular: 58.10
• UNSPSC Code: 12352302
• EC Index Number: 232-151-5
• NACRES: NA.21
• MDL number: MFCD00011398
• Assay: ≥99.0% (precipitation titration)
• Grade: ACS reagent
• Form: solid
• Solubility: 923 g/L

Propiedades

• grade: ACS reagent
• Quality Segment: 300
• vapor pressure: 1.3 hPa ( 885 °C)
• product line: EMSURE^®
• assay: ≥99.0% (precipitation titration)
• form: solid
• potency: 245 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.05% Free acid (as HF)
• pH: 8-9 (20 °C, 50 g/L in H₂O)
• bp: 1505 °C/1013 hPa
• mp: 846 °C
• solubility: 923 g/L
• density: 2.48 g/cm³ at 20 °C
• bulk density: 400 kg/m³
• anion traces: chloride (Cl^-): ≤0.005%, hexafluorosilicate (SiF₆^2-): ≤0.05%, sulfate (SO₄^2-): ≤0.005%
• cation traces: Fe: ≤0.001%, Na: ≤0.2%, excess alkali: ≤0.05% (as KOH), heavy metals (as Pb): ≤0.001%
• storage temp.: 2-30°C
• SMILES string: [K+].[F-]
• InChI: 1S/FH.K/h1H;/q;+1/p-1
• InChI key: NROKBHXJSPEDAR-UHFFFAOYSA-M

Descripción

Application

• Preanalytical factors influencing the results of ethanol analysis in postmortem specimens.: This study explores various preanalytical factors that affect the accuracy of ethanol analysis in postmortem specimens. Potassium fluoride is highlighted for its role in preventing the postmortem production of ethanol, thus ensuring reliable analytical results (Olds & Jones, 2024).


• Enantioselective Synthesis of Chiral 2-Nitroallylic Amines via Cooperative Cation-Binding Catalysis.: This study reports the enantioselective synthesis of chiral 2-nitroallylic amines using a cooperative cation-binding catalysis approach involving potassium fluoride. It highlights the compound′s efficacy in asymmetric synthesis, an important area in organic chemistry (Park et al., 2023).


• Synthesis of Sulfonyl Fluorides Using Direct Chloride/Fluoride Exchange in Potassium Fluoride and Water/Acetone.: The article presents a method for synthesizing sulfonyl fluorides using direct chloride/fluoride exchange in potassium fluoride and water/acetone, highlighting a practical and efficient approach to synthesizing these important compounds in organic chemistry (Bare, 2023).

Analysis Note

Assay (precipitative titration): ≥ 99.0 %
Free alkali (as KOH): ≤ 0.05 %
Free acid (as HF): ≤ 0.05 %
Chloride (Cl): ≤ 0.005 %
Hexafluorosilicate (SiF₆): ≤ 0.05 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %
Na (Sodium): ≤ 0.2 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Información de seguridad

• signalword: Danger
• pcodes: P261 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• pictograms: GHS06,GHS05
• hcodes: H301 + H311 + H331,H318
• Clase de almacenamiento: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects