machiavelli976
Well-known member
- Joined
- Mar 25, 2010
- Messages
- 263
A friend gave me some kind of pyrex bubblers . One has broken frit inside so I've decided to cut the useless top. That allowed me to test a nitric pin digestion with weak acid , high liquid column and almost sealed setup . Almost sealed because the lens used as tap is pretty heavy comparing with regular watch glasses of lab gear.
The brown fumes escaped are almost invisible , the space above liquid is only slight colored and removing the lens , huge brown fumes appear like from nowhere .
I guess this is the prove that nitric gas is absorbed and maybe it returns as acid leaking down inside the beaker walls. Maybe the much lower temperature of the glass at the top , helps the absorbtion of the brown fumes.
I wish to test an even higher beaker but no one like desired I've found yet.
The brown fumes escaped are almost invisible , the space above liquid is only slight colored and removing the lens , huge brown fumes appear like from nowhere .
I guess this is the prove that nitric gas is absorbed and maybe it returns as acid leaking down inside the beaker walls. Maybe the much lower temperature of the glass at the top , helps the absorbtion of the brown fumes.
I wish to test an even higher beaker but no one like desired I've found yet.