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Bottle, supposedly used by Joseph Black

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Bottle, supposedly used by Joseph Black
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This stoppered glass bottle was supposedly used by Professor Joseph Black (1728-99) in classroom demonstrations at Edinburgh University of his experiment to produce carbon dioxide. It is possible, however, that it dates from a slightly later period.

The pear-shaped bottle is made from clear glass. It has a ground glass stopper. The white deposit inside is largely calcium carbonate.

With his separation and identification of the first gas distinct from air, Black may be considered the father of pneumatic chemistry. Other gases, notably oxygen and nitrogen, were discovered in quick succession by other scientists.

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