Potassium fluoride , AR, powder, 99.0% , 7789-23-3

Synonym(s):
Potassium Fluoride;Potassium monofluoride;Potassium monofluoride (KF)

CAS NO.：7789-23-3

Empirical Formula: FK

Molecular Weight: 58.1

MDL number: MFCD00011398

EINECS: 232-151-5

PRODUCT Properties

• Melting point: 858 °C (lit.)
• Boiling point: 1505 °C
• Density: 2.48
• vapor density: 2 (vs air)
• vapor pressure: 1.3 hPa (885 °C)
• refractive index: 1.363
• Flash point: 1505°C
• storage temp.: Store at +5°C to +30°C.
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• form: spray-dried
• Specific Gravity: 2.481
• color: White
• PH: 7.0-8.5 (25℃, 1M in H2O)
• Odor: Odorless
• Water Solubility: 92.3 g/100 mL (18 ºC)
• Sensitive: Hygroscopic
• λmax: λ: 260 nm Amax: 0.01; λ: 280 nm Amax: 0.01
• Crystal Structure: NaCl type
• crystal system: Cube
• Merck: 14,7632
• BRN: 3902818
• Space group: Fm3m
• Lattice constant:
  • a/nm: 0.534
  • b/nm: 0.534
  • c/nm: 0.534
  • α/o: 90
  • β/o: 90
  • γ/o: 90
  • V/nm3: 0.1526
• Exposure limits: ACGIH: TWA 2.5 mg/m3; NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
• Stability: Stable. Protect from moisture. Incompatible with strong acids, strong bases.
• InChIKey: NROKBHXJSPEDAR-UHFFFAOYSA-M
• LogP: -0.77 at 25℃
• CAS DataBase Reference: 7789-23-3(CAS DataBase Reference)
• NIST Chemistry Reference: Potassium fluoride(7789-23-3)
• EPA Substance Registry System: Potassium fluoride (7789-23-3)

Description and Uses

Potassium fluoride is used in metal finishing, batteries, coatings and photographic chemicals. It is utilized for the study of ion-specific swelling and de-swelling of ampholytic polymer gels as well as in the measurement of electronic polarizabilities of ions in polymers of alkali halides. It finds application in the electronic industry as a metal surface treatment product. It is used as a preservative, a food additive, a catalyzer and a water absorbing agent. In the Finkelstein reaction, it is actively involved in the conversion of chlorocarbons to fluorocarbons using polar solvents like dimethyl formamide and ethylene glycol.

Safety

• Symbol(GHS): GHS05,GHS06
• Signal word: Danger
• Hazard statements: H301+H311+H331-H318
• Precautionary statements: P261-P280-P301+P310-P302+P352+P312-P304+P340+P311-P305+P351+P338
• Hazard Codes: T
• Risk Statements: 25-23/24/25
• Safety Statements: 45-26-36/37
• RIDADR: UN 1812 6.1/PG 3
• WGK Germany: 3
• RTECS: TT0700000
• F: 3
• Hazard Note: Harmful
• TSCA: Yes
• HS Code: 2826 19 90
• HazardClass: 6.1
• PackingGroup: III
• Hazardous Substances Data: 7789-23-3(Hazardous Substances Data)
• Toxicity: MLD in guinea pigs (mg/kg): 250 orally, 350 s.c.; in frogs (mg/kg): 375 s.c. (Simonin)