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Preparation and Evaluation of Self-Regenerative Carbon Monoxide Detection Gels.

PB83205179

Publication Date	1982
Personal Author	Palmer, J. G.; Cecil, M.; Schrauzer, G. N.; Shuler, K. E.
Page Count	53
Abstract	Continued development of an especially impregnated silica gel capable of reversible chemical detection of carbon monoxide was reported. The affects of changes in mine-related ambient conditions on the detection catalyst's response were explored. Temperature, humidity, and several interfering gases were found to affect the detection catalyst. The interferents include hydrogen sulfide, nitrogen dioxide, acetylene (and methylacetylene), and ammonia. High humidity decreased the detection catalyst's sensitivity to carbon monoxide for some formulations. Increasing temperature generally decreased the reaction time of the detection catalyst with carbon monoxide. A limited physical, chemical, and mechanistic characterization of the detection catalyst and the materials used to prepare it has been carried out. Metal component ratio studies, spectral, analytical, pH, and rate measurements were done.
Keywords	Gas detectors Carbon monoxide Catalysts Silica gel Supports Humidity Chemical properties Physical properties Laboratory equipment Safety Air pollution Indoor air pollution Air pollution detection
Source Agency	Bureau of Mines
NTIS Subject Category	99A - Analytical Chemistry 48A - Mineral Industries 68A - Air Pollution & Control
Corporate Authors	California Univ., San Diego, La Jolla.; Bureau of Mines, Washington, DC.
Supplemental Notes	Color illustrations reproduced in black and white.
Document Type	Technical Report
Title Note	Open File rept. 1 Sep 79-30 Jun 1.
NTIS Issue Number	198318
Contract Number	J0188159

Preparation and Evaluation of Self-Regenerative Carbon Monoxide Detection Gels.

Preparation and Evaluation of Self-Regenerative Carbon Monoxide Detection Gels.
PB83205179

Publication Date	1982
Personal Author	Palmer, J. G.; Cecil, M.; Schrauzer, G. N.; Shuler, K. E.
Page Count	53
Abstract	Continued development of an especially impregnated silica gel capable of reversible chemical detection of carbon monoxide was reported. The affects of changes in mine-related ambient conditions on the detection catalyst's response were explored. Temperature, humidity, and several interfering gases were found to affect the detection catalyst. The interferents include hydrogen sulfide, nitrogen dioxide, acetylene (and methylacetylene), and ammonia. High humidity decreased the detection catalyst's sensitivity to carbon monoxide for some formulations. Increasing temperature generally decreased the reaction time of the detection catalyst with carbon monoxide. A limited physical, chemical, and mechanistic characterization of the detection catalyst and the materials used to prepare it has been carried out. Metal component ratio studies, spectral, analytical, pH, and rate measurements were done.
Keywords	Gas detectors Carbon monoxide Catalysts Silica gel Supports Humidity Chemical properties Physical properties Laboratory equipment Safety Air pollution Indoor air pollution Air pollution detection
Source Agency	Bureau of Mines
NTIS Subject Category	99A - Analytical Chemistry 48A - Mineral Industries 68A - Air Pollution & Control
Corporate Authors	California Univ., San Diego, La Jolla.; Bureau of Mines, Washington, DC.
Supplemental Notes	Color illustrations reproduced in black and white.
Document Type	Technical Report
Title Note	Open File rept. 1 Sep 79-30 Jun 1.
NTIS Issue Number	198318
Contract Number	J0188159