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Section: 6 Minerals and pigments (MP) Page: 173

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


Details

IRUG filename:
RMP00173
Data type:
Raman
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Chrome yellow (PY34: lead chromate) phase in medium chrome green pigment (PY17: chrome yellow & Prussian blue). Prussian blue peaks out of range.
Chemical/botanical name(s):
Lead chromate, Lead chromium oxide
CAS name:
Chromic acid (H2CrO4)​, lead(2+) salt (1:1)
Sample source 1:
Fezandie & Sperrle Inc.
Sample source 2:
Forbes Pigment Collection, Fogg Art Museum (Harvard University Art Museum)
Source location 2:
32 Quincy St, Cambridge, MA, 02138, US
Sample identifier 2:
Chrome Green Medium
Sample source 3:
Forbes Pigment Collection, Philadelphia Museum of Art
Source location 3:
PO Box 7646, Philadelphia, PA, 19130, US
Color:
Green, medium
Age:
May 1936, dated
Application:
Raman microscopy/microspectroscopy
Excitation source (nm):
532
Mode:
Scat
Originating institution name:
Philadelphia Museum of Art
Originating institution acronym:
PMA
Linear formula:
PbCrO4 (chrome yellow)
CAS registry no:
7758-97-6 (lead chromate)