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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 75

 Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
RMP00075
Data type:
Raman
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Cerulean blue, Pigment Blue 35 (PB35), CI77368
CAS name:
C.I. Pigment Blue 35
Sample source 1:
Madderton
Sample source 2:
Forbes Pigment Collection, Harvard University Art Museum
Source location 2:
32 Quincy St, Cambridge, MA, 02138, US
Sample source 3:
Forbes Pigment Collection, Museum of Fine Arts, Boston
Source location 3:
465 Huntington Avenue, Boston, MA, 02115, US
Color:
Blue
Other:
Specific comp. by SEM/EDS: solid sol. (inverse spinel structure) w/variations in rel. Mg & Co content in diff. particles. Atom ratios of Mg/Co vary betw. approx. 4-6. Ni present, Co/Ni approximately 13-17. Some Si, poss.in solid sol., substituting for Sn.
Application:
Raman microscopy/microspectroscopy
Excitation source (nm):
785
Mode:
Scat
Originating institution name:
Museum of Fine Arts, Boston
Originating institution acronym:
MFAB
Linear formula:
Mg2-xCoxSn2O4 (Ideal)
CAS registry no:
83712-59-8
Other analytical methods:
EDS (energy dispersive spectroscopy), SEM (scanning electron microscopy)