402931

Potassium fluoride

ACS reagent, ≥99.0%

• Linear Formula: KF
• CAS Number: 7789-23-3
• Molecular Weight: 58.10
• Beilstein/REAXYS Number: 3902818
• EC Number: 232-151-5
• MDL number: MFCD00011398
• UNSPSC Code: 12352302
• PubChem Substance ID: 329755971
• NACRES: NA.21
• assay: ≥99.0%
• grade: ACS reagent
• form: crystalline powder; powder, crystals or chunks

Properties

• grade: ACS reagent
• vapor pressure: 1.3 hPa ( 885 °C)
• assay: ≥99.0%
• form: crystalline powder; powder, crystals or chunks
• impurities: ≤0.01 meq/g Titr. base; ≤0.03 meq/g Titr. acid; ≤0.1% K₂SiF₆
• pH: 8-9 (20 °C, 50 g/L)
• mp: 858 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.005%
• cation traces: Fe: ≤0.001%; Na: ≤0.2%; heavy metals: ≤0.001% (by ICP)
• SMILES string: [F-].[K+]

Description

Application

A versatile fluoride ion source used in a study of ion-specific swelling and de-swelling of ampholytic polymer gels, in the room temperature oxidation of noble metals in HF, and in the measurement of electronic polarizabilities of ions in polymers of alkali halides.

Safety Information

• pictograms: GHS06,GHS05
• signalword: Danger
• hcodes: H301 + H311 + H331,H318
• 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
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable