Cobalt Glass Plate
notes: label: Description
content: There are two sets of bright lines in the flame spectrum of potassium, one in the violet and one in the red (which are easier to see). A cobalt blue filter of this sort blocks the red/orange region, thus making the violet lines more clearly visible.
label: Description
content: Ref: Charles E. White, “The Blue Glass Filter in the Flame Test for Potassium,” Journal of Chemical Education (Oct. 1944): 501.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of University of South Carolina
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: CH.315121.073
label: catalog number
content: 315121.073
label: accession number
content: 215563
objectType: label: Object Name
content: Cobalt Glass Plate
physicalDescription: label: Measurements
content: overall: 35 mm x 76 mm; 1 3/8 in x 3 in
label: Measurements
content: overall: 1 3/8 in x 3 in x 1/8 in; 3.4925 cm x 7.62 cm x .3175 cm