Accession Number:

ADA149832

Title:

Examination of a C-Black by Various FT-IR Spectroscopic Methods,

Descriptive Note:

Corporate Author:

OKLAHOMA STATE UNIV STILLWATER DEPT OF CHEMISTRY

Report Date:

1984-01-01

Pagination or Media Count:

5.0

Abstract:

Carbon-black prepared by combustion of hexane has been studied by Fourier-transformed infrared spectroscopy, with the use of transmission, attenuated total reflectance, diffuse reflectance, and photoacoustic detection methods. When compared, the results indicate the presence of oxidative functional groups on the carbon-black lattice. The results obtained by photoacoustic detection differ substantially from those obtained by the other methods. The explanation offered is that the photoacoustic method produces a spectrum which is defined only by the optical characteristics of the interferometer head. A ratio of the photoacoustic spectrum to the standard TGS detector single beam spectrum results in the observation of the spectroscopic sensitivity profile of the TGS detector. For these low acoustic modulation frequencies, carbon-black is observed to display no surface functionally by FT- IR-PAS detection. This distinguishes FT-IR-PAS as an analytical tool for this particular chemical system. Originator-supplied keywords include Infrared spectroscopy Carbon-black Infrared and Surface analysis.

Subject Categories:

  • Miscellaneous Materials
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE