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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 304

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Details

IRUG filename:
IMP00304
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Cobalt blue, Pigment Blue 28 (PB28), CI77346
Chemical/botanical name(s):
Cobalt aluminate with minor aluminum oxide
CAS name:
C.I. Pigment Blue 28, Aluminum cobalt oxide (Al2CoO4)
Sample source 1:
Lefranc
Sample source 2:
Forbes Pigment Collection, Straus Conservation Center, Fogg Art Museum
Source location 2:
32 Quincy St, Cambridge, MA, 02138, US
Sample identifier 2:
Display 84
Color:
Blue
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Straus Center for Conservation, Harvard University Art Museums
Originating institution acronym:
HUAM
Molecular formula:
Al2 Co O4
Linear formula:
CoO*Al2O3, minor Al2O3
CAS registry no:
1345-16-0 (PB28), 1333-88-6
Other analytical methods:
XRD (x-ray diffraction), Bill Croft November 1998