Calcium Chloride Tube

Calcium Chloride Tube

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Usage conditions apply
Before analyzing organic compounds, chemists purified the oxygen or air they would use by passing it through a tube containing an absorbing material of some sort. Several forms were devised for that purpose. This example represents the form devised by S. Schmitz in the 1880s.
Ref: Henry Heil, Illustrated Catalogue and Price-List of Chemical Apparatus (St. Louis, 1903), p. 437.
Ref: S. Schmitz, “Modification of the Calcium Chloride Drying Tube use in Elementary Analysis,” Zeit. Anal. Chem. 23 (1884?): 688.
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Object Name
Calcium Chloride Tube
Associated Place
United States: New Jersey
overall: 10.2 cm x 12.8 cm x 3.9 cm; 4 in x 5 1/16 in x 1 9/16 in
overall: 4 3/8 in x 5 in x 1 1/2 in; 11.1125 cm x 12.7 cm x 3.81 cm
ID Number
accession number
catalog number
Credit Line
Gift of University of Pennsylvania Chemistry Lab
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History
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