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Suzuki EM. Infrared spectra of U.S. automobile original finishes (post - 1989). VIII: In situ identification of bismuth vanadate using extended range FT-IR spectroscopy, Raman spectroscopy, and X-ray fluorescence spectrometry. J Forensic Sci. 2013;59(2):344-63doi: 10.1111/1556-4029.12318.
Suzuki, E. M. (2014). Infrared spectra of U.S. automobile original finishes (post - 1989). VIII: In situ identification of bismuth vanadate using extended range FT-IR spectroscopy, Raman spectroscopy, and X-ray fluorescence spectrometry. Journal of forensic sciences, 59(2), 344-63. https://doi.org/10.1111/1556-4029.12318
Suzuki, Edward M. "Infrared spectra of U.S. automobile original finishes (post - 1989). VIII: In situ identification of bismuth vanadate using extended range FT-IR spectroscopy, Raman spectroscopy, and X-ray fluorescence spectrometry." Journal of forensic sciences vol. 59,2 (2014): 344-63. doi: https://doi.org/10.1111/1556-4029.12318
Suzuki EM. Infrared spectra of U.S. automobile original finishes (post - 1989). VIII: In situ identification of bismuth vanadate using extended range FT-IR spectroscopy, Raman spectroscopy, and X-ray fluorescence spectrometry. J Forensic Sci. 2014 Mar;59(2):344-63. doi: 10.1111/1556-4029.12318. Epub 2013 Nov 21. PMID: 24261821.
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J Forensic Sci. 2014 Mar;59(2):344-63. doi: 10.1111/1556-4029.12318. Epub 2013 Nov 21.

Infrared spectra of U.S. automobile original finishes (post - 1989). VIII: In situ identification of bismuth vanadate using extended range FT-IR spectroscopy, Raman spectroscopy, and X-ray fluorescence spectrometry.

Journal of forensic sciences

Edward M Suzuki

Affiliations

  1. Washington State Crime Laboratory, Washington State Patrol, 2203 Airport Way South, Building A, Suite 250, Seattle, WA, 98134-2045.

PMID: 24261821 DOI: 10.1111/1556-4029.12318

Abstract

Chrome Yellow (PbCrO4 ·xPbSO4 ) was a common pigment in U.S. automobile OEM finishes for more than three decades, but in the early 1990s its use was discontinued. One of its main replacements was Bismuth Vanadate (BiVO4 ·nBi2 MoO6 , n = 0-2), which was commercially introduced in 1985, as this inorganic pigment also produces a very bright hue and has excellent outdoor durability. This paper describes the in situ identification of Bismuth Vanadate in automotive finishes using FT-IR and dispersive Raman spectroscopy and XRF spectrometry. Some differentiation of commercial formulations of this pigment is possible based on far-infrared absorptions, Raman data, and elemental analysis. The spectral differences arise from the presence or absence of molybdenum, the use of two crystal polymorphs of BiVO4 , and differences in pigment stabilizers. Bismuth Vanadate is usually not used alone, and it is typically found with Isoindoline Yellow, hydrous ferric oxide, rutile, Isoindolinone Yellow 3R, or various combinations of these.

© 2013 American Academy of Forensic Sciences.

Keywords: Bismuth Vanadate; Raman spectroscopy; X-ray fluorescence spectrometry; automotive paint; criminalistics; forensic science; infrared spectroscopy; paint analysis; pigment identification

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