Accession Number : ADA016992

Title :   Coulometric Measurement of HCl in Space Launch Vehicle Exhaust.

Descriptive Note : Progress rept. Jul 73-Jun 74,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Personal Author(s) : Legday,Robert C. ; Miller,Richard L. ; Beatty,David C.

Report Date : SEP 1975

Pagination or Media Count : 18

Abstract : Large solid-propellant rocket motors release quantities of hydrogen chloride (HCl) gas as a product of combustion. Since HCl is a potential environmental hazard, the measurement of its concentration in the stabilized rocket exhaust ground cloud becomes important to validate diffusion estimates governing launch constraints, as well as to assess the biologic and ecologic impact of HCl reactions which may occur in the exhaust plume. This paper describes the development and test of a microcoulometer for detection of HCl in rocket exhaust, and presents analytical results from Titan III launch vehicle monitoring studies at Cape Canaveral, Florida, and Vandenberg Air Force Base, California.

Descriptors :   *Hydrogen chloride, Exhaust gases, Colorimetric analysis, Plume detection, Solid propellant rocket engines, Air pollution, Monitoring, Launch vehicles

Subject Categories : Physical Chemistry
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE