NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Dehydrohalogenation of atmospheric contaminants in the space cabinA total of nine chlorinated ethanes and ethenes were circulated over lithium hydroxide in a laboratory scale closed system simulator. System volume and lithium hydroxide temperature were varied from that intended to maximize possible reactions to conditions approximating those of a space cabin environment. Of the nine compounds tested, seven were found to be dehydrohalogenated (viz., loss of hydrogen chloride) in the course of one or more experimental treatments. Of particular significance was the conversion of 1,2-dichloroethane to chloroethene, a known carcinogen, and of trichloroethene to dichloroethyne, a highly toxic substance. It is therefore concluded that a potentially hazardous situation exists for the inhabitants of closed ecological systems such as spacecraft, one for which precautions must continue to be taken.
Document ID
19850044523
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Spain, M. A.
(Texas, University Houston, TX, United States)
Middleditch, B. S.
(Texas Univ. Houston, TX, United States)
Bafus, D. A.
(Texas Univ. Houston, TX, United States)
Galen, T.
(Northrop Services, Inc. Houston, TX, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1985
Publication Information
Publication: Aviation, Space, and Environmental Medicine
Volume: 56
ISSN: 0095-6562
Subject Category
Man/System Technology And Life Support
Accession Number
85A26674
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available