Pneumatic Trough
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A pneumatic trough is a piece of laboratory apparatus used for collecting gases, such as hydrogen, oxygen, and nitrogen. Pneumatic troughs require a liquid such as water. Scientists also have used mercury in pneumatic troughs, but usually only for the collection of water-soluble gases. Health-and-safety issues surrounding mercury generally prohibit its use in modern-day pneumatic troughs.The bottle is filled with water, inverted, and placed into the pneumatic trough a...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A pneumatic trough is a piece of laboratory apparatus used for collecting gases, such as hydrogen, oxygen, and nitrogen. Pneumatic troughs require a liquid such as water. Scientists also have used mercury in pneumatic troughs, but usually only for the collection of water-soluble gases. Health-and-safety issues surrounding mercury generally prohibit its use in modern-day pneumatic troughs.The bottle is filled with water, inverted, and placed into the pneumatic trough already containing water. The outlet tube from the gas-generating apparatus is inserted into the opening of the bottle so that gas can bubble up through it, displacing the water within.
