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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 5

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Details

IRUG filename:
IMP00005
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Egyptian blue, Pigment Blue 31 (PB31), CI77437
Chemical/botanical name(s):
Calcium copper silicate
CAS name:
Silicic acid (H2Si2O5)​, calcium copper(2+) salt (2:1:1), C.I. Pigment Blue 31
Sample source 1:
Forbes Pigment Collection, Straus Conservation Center, Fogg Art Museum
Source location 1:
32 Quincy St, Cambridge, MA, 02138, US
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:
Ca Cu Si4 O10
Linear formula:
CaCu(Si2O5)2
CAS registry no:
10279-60-4 (Egyptian blue), 945558-75-8 (PB31)