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Section: 6 Minerals and pigments (MP) Page: 178

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


Details

IRUG filename:
RMP00178
Data type:
Raman
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Chrome yellow, Pigment Yellow 34 (PY34), CI77600
Chemical/botanical name(s):
Lead chromate
CAS name:
C.I. Pigment Yellow 34, Chromic acid (H2CrO4)​, lead(2+) salt (1:1)
Sample source 1:
Ansbacher Seigle Corp.
Source location 1:
Staten Island
Sample identifier 1:
65T81 Medium chrome yellow
Sample source 2:
Forbes Pigment Collection, Fogg Art Museum (Harvard University Art Museum)
Source location 2:
32 Quincy St, Cambridge, MA, 02138, US
Sample source 3:
Forbes Pigment Collection, Philadelphia Museum of Art
Source location 3:
PO Box 7646, Philadelphia, PA, 19130, US
Color:
Yellow
Age:
1941, dated
Application:
Raman microscopy/microspectroscopy
Excitation source (nm):
785
Mode:
Scat
Originating institution name:
Philadelphia Museum of Art
Originating institution acronym:
PMA
Molecular formula:
PbCrO4
Linear formula:
Cr O4 Pb
CAS registry no:
1344-37-2 (PY34), 7758-97-6