The function of KOH is to absorb ________
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is used in various chemical, industrial and manufacturing applications. Potassium hydroxide is also a precursor to other potassium compounds. Potassium hydroxide is used in food to adjust pH, as a stabilizer, and
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The preferable function of the KOH is to absorb Carbon dioxide.
- When carbon dioxide(CO2) reacts with potassium hydroxide(KOH), they undergo a neutralisation reaction to form salt and water molecules.
- Potassium hydroxide is commonly known as caustic potash.
- The salt generated is potassium carbonate( K2CO3).
- Carbon dioxide is an acidic oxide while potassium hydroxide is a strong base.
- The potassium carbonate which on further exposure to the carbon dioxide yields potassium bicarbonate(KHCO3) i.e more soluble in water and thus absorbs the carbon dioxide.
- The reactions are represented as 2KOH + CO2→ K2CO3 + H2O and K2CO3 + CO2 + H2O→2KHCO3.
- This reaction is helpful in estimating the amount of carbon present in an organic compound.
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