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Section: 6 Minerals and pigments (MP) Page: 27

 Copyright © 1993-2025 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
RMP00027
Data type:
Raman
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Chrome orange, Pigment Orange 21 (PO21), CI77601
Chemical/botanical name(s):
Basic lead chromate
CAS name:
Unspecified
Sample source 1:
Forbes Pigment Collection, Harvard University Art Museum
Source location 1:
32 Quincy St, Cambridge, MA, 02138, USA
Sample source 2:
Museum of Fine Arts, Boston
Source location 2:
465 Huntington Avenue, Boston, MA, 02115, USA
Sample identifier 2:
MFA 205, Chrome orange, April 1925
Color:
Orange
Age:
April 1925, dated
Other:
Raman spectrum similar to Hemihedrite
Application:
Raman microscopy/microspectroscopy
Excitation source (nm):
785
Mode:
Scat
Literature Reference:
Frost, Ray L. "Raman Microscopy of Selected Chromate Minerals." J. Raman Spectrosc. Journal of Raman Spectroscopy 35.2 (2004): 153-58. Web.
Originating institution name:
Museum of Fine Arts, Boston
Originating institution acronym:
MFAB
Molecular formula:
Cr O5 Pb2
Linear formula:
Pb2(CrO4)O
CAS registry no:
1344-38-3
Other analytical methods:
EDS (energy dispersive spectroscopy), XRF (x-ray fluorescence), XRD (x-ray diffraction), SEM (scanning electron microscopy)