HCN + HF Reaction & Acid-Base Indicator Characteristics

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The reaction between HCN and HF is questioned, with suggestions that it may not produce a significant product due to the stability of the acids involved. The discussion highlights that HCN has localized electrons on nitrogen, which could facilitate hydrogen bonding, but the availability of hydrogen in HF for deprotonation is uncertain. A proposed reaction suggests the formation of HCF3 and NH3, although this is speculative. Additionally, a key characteristic of an acid-base indicator is an intense color change, which is essential for effective visual detection of pH changes. Overall, the conversation emphasizes the complexities of acid-base reactions and the properties of indicators.
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Hcn + Hf --> ?

Homework Statement



-What do HCN + HF form? (I've googled the reaction, can't find anything).
-Also, what're 3 good characteristics of an acid-base indicator?

Homework Equations





The Attempt at a Solution



I know it's an acid-base reaction. I'm guessin something like
HCN + HF --> NH3 + CF

-One good characteristic of an acid base indicator would be an intense colour change?
 
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HCN has localized electrons available on the nitrogen and the proton (on carbon) is fairly acidic. This suggests that it should hydrogen bond fairly easily... but is the hydrogen in HF that available for hydrogen bonding?
Fluorine has a strong affinity for hydrogen... but is it strong enough to deprotonate the hydrocyanic acid?
 
so I'm guessing then that there isn't a reaction? because judging from what you said, the only thing I can think of is:

HCN + HF ------> HCF3 + NH3
 

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