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Thermal decomposition of KHCO3 to KOH ?

Thermal decomposition of KHCO3 to KOH ?

Thermal decomposition of KHCO3 to KOH ?

(OP)
Hi,

Does anyone know if it is possible to thermally decompose KHCO3 to KOH; perhaps it is possible but some specific conditions are required.

I know that KHCO3 decomposes into K2CO3, H2O and CO2 but the question is if it could decompose to KOH?

Thanks!

RE: Thermal decomposition of KHCO3 to KOH ?


I hope this helps:

From a chemistry book on amphoteric equilibria:

A 0.1 M HCO3- water solution results in pH = 8.3 ≈ ½ (pK1 + pK2)

since  [H3O+] ≈ (K1K2)½

K1 = 2.3 × E-8
K2 = 4.8 × E-11

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