Archive: Rubber stoppers - The Explosives and Weapons Forum

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Rubber stoppers

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Author	Topic: Rubber stoppers
sharky Frequent Poster	posted September 06, 1999 05:48 PM Would nitric acid or NO2 eat through those hard black rubber stoppers for flasks? thanks sharky
Saiyan Knight Frequent Poster	posted September 06, 1999 07:56 PM Yes sir indeed.
nbk2000 Moderator	posted September 09, 1999 05:21 AM Viton rubber stoppers are acid resistant. They're the green colored stoppers. They cost more but they're worth it. ------------------ "The knowledge that they fear is a weapon to be used against them."
megalomania Administrator	posted September 14, 1999 06:06 AM Nitric acid will not eat through the rubber stopper right away. If left in constant contact for a couple of hours it will be eaten and can contaminate the acid. Something like teflon would be resistant as well. ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
nbk2000 Moderator	posted September 14, 1999 03:09 PM I tried making nitric in a distilling flask using a rubber stopper to hold the thermometer (curious) and the rubber started melting into a blackish liquid and getting into the mix. Needless to say my acid was fucked. Had to throw it away. ------------------ "The knowledge that they fear is a weapon to be used against them." www.50megs.com/nbk2000

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