cadmium sample rod
Datecirca 1900
Inventory Number3942
ClassificationMetal Sample
Subject
Owner
Theodore William Richards
1868 - 1928
Cultural Region
Place of Use
Dimensions0.8 x 12.9 x 0.8 cm (5/16 x 5 1/16 x 5/16 in.)
Material
DescriptionSmall square bar of cadmium (dull, blue-white metal).
Signedunsigned
Curatorial RemarksSpecimen was unidentified. In order to identifiy this object, its density was determined through weighing and measuring. The final result was D = 8527 kg/(m^3), which is fairly close to Cadmium's 8650 kg/(m^3). See other specimen's : 3944, 3945, and 3946.
FunctionTOXIC.
Oxford English Dictionary 2nd ed.: "Cadmium: A bluish-white metal, in its physical qualities resembling tin, found in small quantities chiefly in zinc ores. Symbol Cd."
Oxford English Dictionary 2nd ed.: "Cadmium: A bluish-white metal, in its physical qualities resembling tin, found in small quantities chiefly in zinc ores. Symbol Cd."
ProvenanceWilliam Th. Richards, son of Theodore William Richards, Harvard University.
Historical AttributesNotecard in drawer where this specimen was found reside: "All the instruments and specimens in these boxes are the property of Wm. T. Richards the gift of his father (T.W.R.) [Theodore W. Richards]. They are historically valuble. Jan 1928. W.T.R. Says for museum."
Theodore William Richards
Date: circa 1900
Accessories: old tag
Object number: 3946
Theodore William Richards
Date: circa 1900
Accessories: old tag
Object number: 3944
Theodore William Richards
Date: circa 1900
Accessories: old tag
Object number: 3945
Theodore William Richards
Date: circa 1900
Accessories: old tag
Object number: 3947
Theodore William Richards
Date: 1925
Accessories: one of three bars contained in box: 4936 bismuth sample [?], 4937 copper sample, 4938 lead sample.
Object number: 4938
Theodore William Richards
Date: circa 1900
Accessories:
one of three bars contained in box: 4936 bismuth sample [?], 4937 copper sample, 4938 lead sample.
Object number: 4936
Theodore William Richards
Date: circa 1900
Accessories: one of three bars contained in box: 4936 bismuth sample [?], 4937 copper sample, 4938 lead sample.
Object number: 4937