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AMMONIA FOUNTAIN WITH PHENOLPHTHALEIN INDICATOR<br />
Water Injected Into Flask Filled With NH3 Gas<br />
The extreme solubility of ammonia gas creates a pressure drop which drives the water/indicator solution (clear)  in  beaker  into the flask by atmospheric pressure, creating a fountain effect & turning magenta  with the formation of OH- ions

Fphoto-30449111B-2RM.jpg

AMMONIA FOUNTAIN WITH PHENOLPHTHALEIN INDICATOR
Water Injected Into Flask Filled With NH3 Gas
The extreme solubility of ammonia gas creates a pressure drop which drives the water/indicator solution (clear) in beaker into the flask by atmospheric pressure, creating a fountain effect & turning magenta with the formation of OH- ions

Copyright:© 1991 Richard Megna - Fundamental Photographs

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Richard Megna