Sciencemadness Discussion Board

Potassium bifluoride

Waffles SS - 4-7-2011 at 12:12

Quote:

Potassium bifluoride is the inorganic compound with the formula KHF2. This colourless salt consists of the potassium cation and the bifluoride (HF2 − ) anion. The salt is used in etchant for glass. Sodium bifluoride is related and is also of commercial use as an etchant as well as in cleaning products
The salt was prepared by Edmond Frémy who decomposed it to generate, for the first time, hydrogen fluoride. Potassium bifluoride is prepared by treating potassium carbonate or potassium hydroxide with hydrofluoric acid:

2 HF + KOH → KHF2 + H2O

http://en.wikipedia.org/wiki/Potassium_bifluoride


Hydrofluoric acid attack glass and stainless steel
What container is suitable for this reaction?
What container is suitable for evoporation step?
Anyone made potassium bifluoride?

[Edited on 4-7-2011 by Waffles SS]

Lambda-Eyde - 4-7-2011 at 13:42

PP and PTFE.