I am… KF Potassium Fluoride Truvian Wong F.3A (41)

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Presentation transcript:

I am… KF Potassium Fluoride Truvian Wong F.3A (41)

Electron diagram of Kf

Modal of Kf

More about potassium fluoride element analysis Element percentages for the elements in potassium fluoride ElementPercentage potassium32.7 fluorine67.3

Synthesis of Kf One way to make potassium fluoride is to react the hydroxide with hydrofluoric acid. The resulting salt can then be purified by recrystallization. KOH(aq) + HF(aq) → KF(aq) + H 2 O(l) Also, potassium metal reacts vigorously with all the halogens to form potassium halides. So, it burns with fluorine, F 2, to form potassium(I) fluoride, KF. 2K(s) + F 2 (g) → 2KF(s)

More about Kf… Physical properties AppearanceWhite crystalline deliquescent powder TasteSharp saline Melting point846 °C Boiling point1505 °C Physical state at room temperature solid

More about Kf… Physical properties Specific gravity2.454 Refractive index1.352 Density2.48 g/cm 3 toxicityCorrosive, Affects respiratory system, heart, skeleton, circulatory system, central nervous system and kidneys. Cause irritation to skin and eyes.

More about Kf… Physical properties Electrical conductivity do not conduct electricity in solid state but conduct electricity in solution form Ionic compound SolubilitySoluble in water and liquid hydrogen fluoride Because the energy released due to the solvation of K+ and F- ions by water can compensate for the energy required to break the electrostatic attraction between these ions. insoluble in alcohol

More about Kf… Chemical properties Laboratory preparation stored in a cool, dry, ventilated area. Isolate from acids and alkalis. Reactivityreacts with acids to evolve corrosive and toxic hydrogen fluoride. Corrodes glass and porcelain. pHAlkaline Oxidizing/ reducing Oxidizing

More about Kf…… Application Atomic Energy Applications Brazing Fluxes Glass Industries Insecticide Formulations

Source of information tp/ /Potassium_Fluoride.html fluoride o-chemicals.html htm

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