1. Home>
  2. Search IRUG Spectral Database>
  3. Interactive IRUG Spectrum

Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 512

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


Details

IRUG filename:
IMP00512
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Talc, Pigment White 26 (PW26), CI77718
Chemical/botanical name(s):
Magnesium silicate hydroxide, pyrophyllite-talc group, silicate class
CAS name:
Talc (Mg3H2(SiO3)​4), C.I. Pigment White 26
Sample source 1:
J.T. Baker Inc.
Sample source 2:
Washington State Patrol, Washington State Crime Laboratory
Source location 2:
2203 Airport Way South, Seattle, WA, 98104, US
Sample identifier 2:
Talc
Color:
Off-white
Application:
Transmission FTIR spectroscopy
Mode:
Tran
Literature Reference:
Suzuki, Edward M. “Infrared Spectra of U.S. Automobile Original Topcoats (1974-1989): II. Identification of Some Topcoat Inorganic Pigments Using an Extended Range (4000-220 cm-1) Fourier Transform Spectrometer.” Journal of Forensic Sciences, vol. 41, no. 3, 1996, pp.393-406.
Originating institution name:
Washington State Patrol, Crime Laboratory Division
Originating institution acronym:
WSP
Linear formula:
Mg3Si4O10(OH)2
CAS registry no:
14807-96-6 (talc), 8005-37-6 (PW26)
Other analytical methods:
XRF (x-ray fluorescence)