Eudiometer (Replica)

Description
In the 1770s, scientists developed eudiometers for determining the goodness (or rather, the oxygen content) content of samples of air. The most successful form, described by Alessandro Volta in 1777, used an electric spark to ignite the air to be tested.
This is a further development of Volta’s instrument. Its inventor, the American chemist, Robert Hare (1781–1858), termed it an “aqueous sliding-rod hydro-oxygen eudiometer.” This replica of Hare’s instrument was made in anticipation of the opening of the National Museum of History and Technology in 1964.
Ref: Robert Hare, “An Account of Some Eudiometers of an Improved Construction,” The Philosophical Magazine and Journal 67 (1826): 21–30.
Location
Currently not on view
Object Name
eudiometer, replica
date made
1959
inventor
Hare, Robert
maker
Eichner, Laurits Christian
Physical Description
copper (overall material)
glass (overall material)
Measurements
overall: 7 1/2 in x 1 1/2 in x 21 1/2 in; 19.05 cm x 3.81 cm x 54.61 cm
tube and piston: 20 in; 50.8 cm
bulb: 3 1/4 in; 8.255 cm
ID Number
CH*316886
catalog number
316886
accession number
228961
subject
Chemistry
See more items in
Medicine and Science: Chemistry
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center

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