Colorimetric testing and measuring device for gases

Details Colorimetric testing and measuring device for gases Colorimetric testing and measuring device for gases

1991-12-09

1992-12-15

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 86, 422 87, 436104, 436167, 436169, G01N 3000

Patent

active

051715368

ABSTRACT:
The invention is directed to a testing and measuring device for colorimetrically detecting gases on a carrier which is impregnated with a solution of a moisture store and a detecting indicator. The testing and measuring device is improved in that the moisture on the indicator carrier needed for the detecting reaction is maintained over a longer time span during storage in the unused condition as well as during measurement under the action of the gaseous substance to be detected. For this purpose, the impregnating solution is composed of the detecting indicator and a mixture of sulfolane and diethylphthalate as a moisture store. For measuring hydride gases, the indicator comprises a palladium tetramine chloride. The impregnating solution is applied to a paper carrier or to a granular silica gel carrier.

REFERENCES:
patent: 1644014 (1927-10-01), Gordon et al.
patent: 4731333 (1988-03-01), Kitahara et al.
patent: 4737166 (1988-04-01), Matson
patent: 4883505 (1989-11-01), Lucero

Affiliated with

Also associated with

Rating

Colorimetric testing and measuring device for gases does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Colorimetric testing and measuring device for gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Colorimetric testing and measuring device for gases will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2091245