glass desiccator
Date1870-1920
Inventory Number4954
ClassificationDesiccator
Subject
Maker
American
?
Cultural Region
Dimensions21 x 18 cm (8 1/4 x 7 1/16 in.)
Material
DescriptionA vessel with a conical lower section that widens to a straight cylindrical upper section. It ends in an open mouth with a ground rim. It includes a disc-shaped cover with a ground rim, rising in the middle to a round knob.
The desiccator contains three cylindrical dishes with straight walls inside: a large one almost with the same diameter as the desiccator, and two smaller identical ones that are kept inside it. One of them has an old label with inscriptions in pencil detailing what it used to contain.
The desiccator contains three cylindrical dishes with straight walls inside: a large one almost with the same diameter as the desiccator, and two smaller identical ones that are kept inside it. One of them has an old label with inscriptions in pencil detailing what it used to contain.
Signedunsigned
Curatorial RemarksVery similar to 4340, but contains two small dishes and a larger one that holds them inside.
FunctionDesiccators are used to dry substances by placing them inside together with a hygroscopic substance like an acid or a salt. They can also be used to store substances at a constant, controllable humidity level by placing a substance with specific hygroscopic properties, and which has already absorbed water, in the desiccator.
In desiccators of the shape seen in this object, the hygroscopic substance is usually placed in the lower level.
In desiccators of the shape seen in this object, the hygroscopic substance is usually placed in the lower level.
German
Date: 1870-1920
Accessories: its lid is instrument No. 4350.
Object number: 4349
German
Date: 1870-1920
Accessories: it comes with a glass stopper with ground walls in a tapering cylindrical shape with a broken knob at one end and a glass hook on the other end
Object number: 4350
George Gilbert Rakestraw
Date: 1878-1905
Accessories: microscope in its box (2004-1-0339b) ; bullseye condensers (2003-1-0339c,d); mineralogy books (in the CHSI library)
Object number: 2004-1-0339a
T. H. Letcher
Date: circa 1889
Accessories: a bottle of barium hydroxide (4510a) may have been part this set.
Object number: 4510b
Todd Scientific Company
Date: 1955-1965
Object number: 1996-1-0396