Once an item is dropped, how long does it take for the item to disappear?

It depends. I've heard 30 seconds for the pvp worlds, but if you die under normal circumstances, you get a gravestone with varying times to retrieve your stuff, depending on the level of your gravestone.

Actually, the whole point of asking was because I read in a thread that dropping and picking up the air talisman from Duke Horacio is good money for pures.

 

 

 

So I tested it myself and got about 3 minutes, for anyone interested, only tested once, so it may vary.

 

 

 

EDIT: tested again, 3 minutes exactly.

Actually, the whole point of asking was because I read in a thread that dropping and picking up the air talisman from Duke Horacio is good money for pures.

 

 

 

So I tested it myself and got about 3 minutes, for anyone interested, only tested once, so it may vary.

 

 

 

EDIT: tested again, 3 minutes exactly.

 

 

 

Whoops. I misread your question and thought you meant when you die :oops: Well, you seem to have stumbled across the answer for yourself, so no harm done, I suppose :)