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Author Topic: What's The Most Caustic Substance ?...And What Is It Used For ?  (Read 5914 times)

Offline neilep

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Dear all,

Setting aside my wifeys salmon mousse.....what is the most caustic substance ?..How caustic is it ?.........what is is used for ?....Is it a by-product of something else ie: not directly manufactured......or is it ?



Thanks

Neil
Caustic Substance Enquirer


 

Offline Bored chemist

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The unhelpful answer is what do you mean by caustic? Corrosive to metals; to skin; generally?
 

Offline neilep

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The unhelpful answer is what do you mean by caustic? Corrosive to metals; to skin; generally?

Excellent !...You are of course correct.

How about the most caustic substances in a variety of conditions?

ie: metal, glass, plastic ? skin ?
 

Offline sciencebase

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There are lots of caustic compounds around, but the question implies that the most caustic would have some kind of application, if it were a natural product, then there need not necessarily be a use for such a substance.

db
 

Offline lightarrow

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The unhelpful answer is what do you mean by caustic? Corrosive to metals; to skin; generally?

Excellent !...You are of course correct.

How about the most caustic substances in a variety of conditions?

ie: metal, glass, plastic ? skin ?

Too many choiches, try again...  ;)
 

Offline lightarrow

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Ok, I explain better:

Let's consider only metals; i give you only this example:

HCl dissolves aluminum very fast, but doesn't dissolve copper at all;
HNO3 dissolves copper very fast, but doesn't dissolve aluminum at all...

Which one would you say is more corrosive, then? As you can see from this example only, it's impossible to ask to your question; the reason is that the concept of corrosivity is highly dependent on the substance you want to attack.

If then you also include other materials, like glass or plastic, it's even more...impossible  :)

For glass only, the more corrosive I know is HF, fluoridric acid. For plastic, it's highly dependent on the kind of plastic (as for metals). For skin, i know something very corrosive but I would prefer not to write it here. :-X

 

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