Accession Number : ADA227532


Title :   A Controlled-Environment Chamber for Atmospheric Chemistry Studies Using FT-IR Spectroscopy


Descriptive Note : Final rept. Jan 1986-Jun 1988


Corporate Author : AIR FORCE ENGINEERING AND SERVICES CENTER TYNDALL AFB FL ENGINEERING AND SERVICES LAB


Personal Author(s) : Stone, Daniel A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a227532.pdf


Report Date : Jun 1990


Pagination or Media Count : 57


Abstract : A one-meter diameter, Teflon coated, stainless steel sph ere has been constructed as a tool for conducting studies of the atmospheric chemistry of toxic chemicals. The temperature can be controlled from 5 to 50 deg C. The chamber can be evacuated to 5 X 10 to the minus 6th power torr. Gas samples can be introduced from an external manifold. Solid samples of various kinds can be placed into the interior of the chamber through a 12-in sampling port to determine their effects on gases under study. The chamber is equipped with an in situ, multipass optical system which allows infrared path lengths of 100 meters to be used for the analysis of chemical species. Keywords: Chamber, Controlled environment, Long-path cell, FT-IR, Hydrazine decay, Atmospheric simulation.


Descriptors :   *ATMOSPHERIC CHEMISTRY , CONTROLLED ATMOSPHERES , CHEMICALS , TOXICITY , PATHS , STAINLESS STEEL , SOLIDS , GASES , COATINGS , INTERNAL , LENGTH , SAMPLING , EXTERNAL , MANIFOLDS(ENGINES) , INFRARED RADIATION , DECAY , CHAMBERS , TETRAFLUOROETHYLENE RESINS , OPTICAL EQUIPMENT , HYDRAZINES


Subject Categories : Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE