AN INVESTIGATION OF THERMODIFFUSION IN GASES WITH THE AID OF INFRARED ABSORPTION SPECTRA,
Abstract
Thermodiffusion in binary mixtures of vapor-gas was studied with respect to the integral intensity of absorption bands of elastic vibrations of the NH groups of phthalimide and diphenylamine vapors as it depends on helium and nitrogen concentrations. Depending on the value of the temperature gradient in the phthalimide and nitrogen mixture, attentuation or intensification of absorption is observed, involving a change in the thermodiffusion sign. With no temperature gradient, no foreigh gas influence on vibration absorption bands of polyatomic molecules was detected. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 30, 1969
- Accession Number
- AD0688094
Entities
People
- G. A. Zaleskaya
- N. A. Borisevich
Organizations
- National Air and Space Intelligence Center