Potassium hydroxide neutralization with acetic acid

I put 9% acetic acid to 60% potassium hydroxide solution to neutralize it and was hoping to see some fizzing, but didn't see any indication of them reacting. Why is that?




As stated in Pritt's comment, the reaction you are performing is: 


$$\ce{CH3COOH + KOH -> CH3COO^−K+ + H2O}$$ 


Note that none of the products are gases, so there is no effervescence (fizzing). If you want a neutralization reaction that will effervesce, then you need to form a gas. A simple candidate for this would be sodium bicarbonate (baking soda), which would give the following reaction: 


$$\ce{CH3COOH + NaHCO3 -> CH3COO^−Na+ + H2O + CO2 ^}$$ 


With this we are forming $\ce{CO2}$ gas, which will cause the solution to effervesce. Note that this is likely to be stinky and messy: a good experiment to perform outdoors. 


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Acetic acid is a too weak acid to neutralise KOH.


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