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KFPotassium Fluoride

Truvian WongF.3A (41)

Electron diagram of Kf

Modal of Kf

More about potassium fluorideelement analysis

Element percentages for the elements in potassium fluorideElement Percentage

potassium 32.7

fluorine 67.3

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) + H2O(l)•Also, potassium metal reacts vigorously with all the halogens to form potassium halides. So, it burns with fluorine, F2, to form potassium(I) fluoride, KF.•2K(s) + F2(g) → 2KF(s)

More about Kf…Physical properties

Appearance White crystalline deliquescent powder

Taste Sharp salineMelting point 846 °CBoiling point 1505 °CPhysical state at room temperature

solid

More about Kf…Physical properties

Specific gravity 2.454Refractive index 1.352Density 2.48 g/cm3

toxicity Corrosive,Affects respiratory system, heart, skeleton, circulatory system, central nervous system and kidneys.Cause irritation to skin and eyes.

More about Kf…Physical propertiesElectrical conductivity

do not conduct electricity in solid state but conduct electricity in solution form Ionic compound

Solubility Soluble in water and liquid hydrogen fluorideBecause 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.

Reactivity reacts with acids to evolve corrosive and toxic hydrogen fluoride. Corrodes glass and porcelain.

pH AlkalineOxidizing/ reducing

Oxidizing

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

Source of information• http://www.alibaba.com/product-tp/

218592020/Potassium_Fluoride.html• http://www.answers.com/topic/potassium-

fluoride• http://www.indiamart.com/fluorochem/

fluoro-chemicals.html• http://www.jtbaker.com/msds/englishhtml/

P5774.htm

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